Home / 103,373,654.40-142,656,600-56,965,569.12

Finding the Fourth Proportional to 103,373,654.40, 142,656,600 and 56,965,569.12

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Solution

The fourth proportional to 103,373,654.40, 142,656,600 and 56,965,569.12 is: 78,613,012.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,373,654.40 : 142,656,600 = 56,965,569.12 : x
  2. Step 2: Convert to fraction form
    103,373,654.40/142,656,600 = 56,965,569.12/x
  3. Step 3: Cross multiply
    103,373,654.40x = 142,656,600 × 56,965,569.12
  4. Step 4: Simplify right side
    103,373,654.40x = 8,126,514,407,724,192
  5. Step 5: Solve for x
    x = 8,126,514,407,724,192/103,373,654.40
  6. Step 6: Final answer
    x = 78,613,012.71

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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.