Home / 87,588,436.32-120,815,096.40-56,176,729.92

Finding the Fourth Proportional to 87,588,436.32, 120,815,096.40 and 56,176,729.92

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Solution

The fourth proportional to 87,588,436.32, 120,815,096.40 and 56,176,729.92 is: 77,487,363.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,588,436.32 : 120,815,096.40 = 56,176,729.92 : x
  2. Step 2: Convert to fraction form
    87,588,436.32/120,815,096.40 = 56,176,729.92/x
  3. Step 3: Cross multiply
    87,588,436.32x = 120,815,096.40 × 56,176,729.92
  4. Step 4: Simplify right side
    87,588,436.32x = 6,786,997,040,721,565
  5. Step 5: Solve for x
    x = 6,786,997,040,721,565/87,588,436.32
  6. Step 6: Final answer
    x = 77,487,363.92

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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.