Home / 55,120,811.55-82,681,217.33-38,681,569.95

Finding the Fourth Proportional to 55,120,811.55, 82,681,217.33 and 38,681,569.95

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Solution

The fourth proportional to 55,120,811.55, 82,681,217.33 and 38,681,569.95 is: 58,022,354.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,120,811.55 : 82,681,217.33 = 38,681,569.95 : x
  2. Step 2: Convert to fraction form
    55,120,811.55/82,681,217.33 = 38,681,569.95/x
  3. Step 3: Cross multiply
    55,120,811.55x = 82,681,217.33 × 38,681,569.95
  4. Step 4: Simplify right side
    55,120,811.55x = 3,198,239,291,508,139.50
  5. Step 5: Solve for x
    x = 3,198,239,291,508,139.50/55,120,811.55
  6. Step 6: Final answer
    x = 58,022,354.93

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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.