Home / 85,680,691.68-118,238,144.94-48,510,013.44

Finding the Fourth Proportional to 85,680,691.68, 118,238,144.94 and 48,510,013.44

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Solution

The fourth proportional to 85,680,691.68, 118,238,144.94 and 48,510,013.44 is: 66,943,133.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,680,691.68 : 118,238,144.94 = 48,510,013.44 : x
  2. Step 2: Convert to fraction form
    85,680,691.68/118,238,144.94 = 48,510,013.44/x
  3. Step 3: Cross multiply
    85,680,691.68x = 118,238,144.94 × 48,510,013.44
  4. Step 4: Simplify right side
    85,680,691.68x = 5,735,734,000,160,068
  5. Step 5: Solve for x
    x = 5,735,734,000,160,068/85,680,691.68
  6. Step 6: Final answer
    x = 66,943,133.72

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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.