Home / 85,786,542.22-128,607,489.20-37,227,815.76

Finding the Fourth Proportional to 85,786,542.22, 128,607,489.20 and 37,227,815.76

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Solution

The fourth proportional to 85,786,542.22, 128,607,489.20 and 37,227,815.76 is: 55,810,337.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,786,542.22 : 128,607,489.20 = 37,227,815.76 : x
  2. Step 2: Convert to fraction form
    85,786,542.22/128,607,489.20 = 37,227,815.76/x
  3. Step 3: Cross multiply
    85,786,542.22x = 128,607,489.20 × 37,227,815.76
  4. Step 4: Simplify right side
    85,786,542.22x = 4,787,775,913,293,790
  5. Step 5: Solve for x
    x = 4,787,775,913,293,790/85,786,542.22
  6. Step 6: Final answer
    x = 55,810,337.96

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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.