Home / 85,510,694.59-118,102,811.40-56,272,545.18

Finding the Fourth Proportional to 85,510,694.59, 118,102,811.40 and 56,272,545.18

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Solution

The fourth proportional to 85,510,694.59, 118,102,811.40 and 56,272,545.18 is: 77,720,638.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,510,694.59 : 118,102,811.40 = 56,272,545.18 : x
  2. Step 2: Convert to fraction form
    85,510,694.59/118,102,811.40 = 56,272,545.18/x
  3. Step 3: Cross multiply
    85,510,694.59x = 118,102,811.40 × 56,272,545.18
  4. Step 4: Simplify right side
    85,510,694.59x = 6,645,945,790,391,519
  5. Step 5: Solve for x
    x = 6,645,945,790,391,519/85,510,694.59
  6. Step 6: Final answer
    x = 77,720,638.60

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1.5x scale

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.