Home / 98,487,865.96-135,915,818.36-54,435,560.20

Finding the Fourth Proportional to 98,487,865.96, 135,915,818.36 and 54,435,560.20

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Solution

The fourth proportional to 98,487,865.96, 135,915,818.36 and 54,435,560.20 is: 75,122,489.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,487,865.96 : 135,915,818.36 = 54,435,560.20 : x
  2. Step 2: Convert to fraction form
    98,487,865.96/135,915,818.36 = 54,435,560.20/x
  3. Step 3: Cross multiply
    98,487,865.96x = 135,915,818.36 × 54,435,560.20
  4. Step 4: Simplify right side
    98,487,865.96x = 7,398,653,712,468,046
  5. Step 5: Solve for x
    x = 7,398,653,712,468,046/98,487,865.96
  6. Step 6: Final answer
    x = 75,122,489.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.