Home / 20,687,874.69-28,548,211.94-11,395,244.72

Finding the Fourth Proportional to 20,687,874.69, 28,548,211.94 and 11,395,244.72

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Solution

The fourth proportional to 20,687,874.69, 28,548,211.94 and 11,395,244.72 is: 15,724,856.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,687,874.69 : 28,548,211.94 = 11,395,244.72 : x
  2. Step 2: Convert to fraction form
    20,687,874.69/28,548,211.94 = 11,395,244.72/x
  3. Step 3: Cross multiply
    20,687,874.69x = 28,548,211.94 × 11,395,244.72
  4. Step 4: Simplify right side
    20,687,874.69x = 325,313,861,260,473
  5. Step 5: Solve for x
    x = 325,313,861,260,473/20,687,874.69
  6. Step 6: Final answer
    x = 15,724,856.52

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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.