Home / 71,880,891.55-107,869,851.56-28,156,226.52

Finding the Fourth Proportional to 71,880,891.55, 107,869,851.56 and 28,156,226.52

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Solution

The fourth proportional to 71,880,891.55, 107,869,851.56 and 28,156,226.52 is: 42,253,343.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,880,891.55 : 107,869,851.56 = 28,156,226.52 : x
  2. Step 2: Convert to fraction form
    71,880,891.55/107,869,851.56 = 28,156,226.52/x
  3. Step 3: Cross multiply
    71,880,891.55x = 107,869,851.56 × 28,156,226.52
  4. Step 4: Simplify right side
    71,880,891.55x = 3,037,207,974,664,825
  5. Step 5: Solve for x
    x = 3,037,207,974,664,825/71,880,891.55
  6. Step 6: Final answer
    x = 42,253,343.13

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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.