Home / 157,403,487.42-217,217,102.52-87,793,355.10

Finding the Fourth Proportional to 157,403,487.42, 217,217,102.52 and 87,793,355.10

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Solution

The fourth proportional to 157,403,487.42, 217,217,102.52 and 87,793,355.10 is: 121,154,991.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,403,487.42 : 217,217,102.52 = 87,793,355.10 : x
  2. Step 2: Convert to fraction form
    157,403,487.42/217,217,102.52 = 87,793,355.10/x
  3. Step 3: Cross multiply
    157,403,487.42x = 217,217,102.52 × 87,793,355.10
  4. Step 4: Simplify right side
    157,403,487.42x = 19,070,218,215,331,464
  5. Step 5: Solve for x
    x = 19,070,218,215,331,464/157,403,487.42
  6. Step 6: Final answer
    x = 121,154,991.72

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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.