Home / 87,120,553.20-130,680,829.80-73,515,663.60

Finding the Fourth Proportional to 87,120,553.20, 130,680,829.80 and 73,515,663.60

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Solution

The fourth proportional to 87,120,553.20, 130,680,829.80 and 73,515,663.60 is: 110,273,495.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,120,553.20 : 130,680,829.80 = 73,515,663.60 : x
  2. Step 2: Convert to fraction form
    87,120,553.20/130,680,829.80 = 73,515,663.60/x
  3. Step 3: Cross multiply
    87,120,553.20x = 130,680,829.80 × 73,515,663.60
  4. Step 4: Simplify right side
    87,120,553.20x = 9,607,087,922,545,654
  5. Step 5: Solve for x
    x = 9,607,087,922,545,654/87,120,553.20
  6. Step 6: Final answer
    x = 110,273,495.40

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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.