Home / 7,151,920.60-9,869,773.78-3,888,757.42

Finding the Fourth Proportional to 7,151,920.60, 9,869,773.78 and 3,888,757.42

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Solution

The fourth proportional to 7,151,920.60, 9,869,773.78 and 3,888,757.42 is: 5,366,552.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,151,920.60 : 9,869,773.78 = 3,888,757.42 : x
  2. Step 2: Convert to fraction form
    7,151,920.60/9,869,773.78 = 3,888,757.42/x
  3. Step 3: Cross multiply
    7,151,920.60x = 9,869,773.78 × 3,888,757.42
  4. Step 4: Simplify right side
    7,151,920.60x = 38,381,156,020,696.45
  5. Step 5: Solve for x
    x = 38,381,156,020,696.45/7,151,920.60
  6. Step 6: Final answer
    x = 5,366,552.31

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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.