Home / 81,439,446.52-121,893,311.22-59,868,338.68

Finding the Fourth Proportional to 81,439,446.52, 121,893,311.22 and 59,868,338.68

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Solution

The fourth proportional to 81,439,446.52, 121,893,311.22 and 59,868,338.68 is: 89,607,068.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,439,446.52 : 121,893,311.22 = 59,868,338.68 : x
  2. Step 2: Convert to fraction form
    81,439,446.52/121,893,311.22 = 59,868,338.68/x
  3. Step 3: Cross multiply
    81,439,446.52x = 121,893,311.22 × 59,868,338.68
  4. Step 4: Simplify right side
    81,439,446.52x = 7,297,550,038,945,604
  5. Step 5: Solve for x
    x = 7,297,550,038,945,604/81,439,446.52
  6. Step 6: Final answer
    x = 89,607,068.21

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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.