Home / 89,659,615.80-134,489,423.70-53,379,910.20

Finding the Fourth Proportional to 89,659,615.80, 134,489,423.70 and 53,379,910.20

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Solution

The fourth proportional to 89,659,615.80, 134,489,423.70 and 53,379,910.20 is: 80,069,865.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,659,615.80 : 134,489,423.70 = 53,379,910.20 : x
  2. Step 2: Convert to fraction form
    89,659,615.80/134,489,423.70 = 53,379,910.20/x
  3. Step 3: Cross multiply
    89,659,615.80x = 134,489,423.70 × 53,379,910.20
  4. Step 4: Simplify right side
    89,659,615.80x = 7,179,033,359,955,752
  5. Step 5: Solve for x
    x = 7,179,033,359,955,752/89,659,615.80
  6. Step 6: Final answer
    x = 80,069,865.30

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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.