Home / 90,701,734,287.20-136,052,601,430.80-89,478,675,240.80

Finding the Fourth Proportional to 90,701,734,287.20, 136,052,601,430.80 and 89,478,675,240.80

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Solution

The fourth proportional to 90,701,734,287.20, 136,052,601,430.80 and 89,478,675,240.80 is: 134,218,012,861.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,701,734,287.20 : 136,052,601,430.80 = 89,478,675,240.80 : x
  2. Step 2: Convert to fraction form
    90,701,734,287.20/136,052,601,430.80 = 89,478,675,240.80/x
  3. Step 3: Cross multiply
    90,701,734,287.20x = 136,052,601,430.80 × 89,478,675,240.80
  4. Step 4: Simplify right side
    90,701,734,287.20x = 12,173,806,539,092,554,416,128
  5. Step 5: Solve for x
    x = 12,173,806,539,092,554,416,128/90,701,734,287.20
  6. Step 6: Final answer
    x = 134,218,012,861.20

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.