Home / 21,555,303,443.80-32,332,955,165.70-18,889,416,928.60

Finding the Fourth Proportional to 21,555,303,443.80, 32,332,955,165.70 and 18,889,416,928.60

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Solution

The fourth proportional to 21,555,303,443.80, 32,332,955,165.70 and 18,889,416,928.60 is: 28,334,125,392.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,555,303,443.80 : 32,332,955,165.70 = 18,889,416,928.60 : x
  2. Step 2: Convert to fraction form
    21,555,303,443.80/32,332,955,165.70 = 18,889,416,928.60/x
  3. Step 3: Cross multiply
    21,555,303,443.80x = 32,332,955,165.70 × 18,889,416,928.60
  4. Step 4: Simplify right side
    21,555,303,443.80x = 610,750,670,658,638,315,520
  5. Step 5: Solve for x
    x = 610,750,670,658,638,315,520/21,555,303,443.80
  6. Step 6: Final answer
    x = 28,334,125,392.90

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Double scale
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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.