Home / 20,215,376.55-30,302,397.68-9,964,470.15

Finding the Fourth Proportional to 20,215,376.55, 30,302,397.68 and 9,964,470.15

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Solution

The fourth proportional to 20,215,376.55, 30,302,397.68 and 9,964,470.15 is: 14,936,518.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,215,376.55 : 30,302,397.68 = 9,964,470.15 : x
  2. Step 2: Convert to fraction form
    20,215,376.55/30,302,397.68 = 9,964,470.15/x
  3. Step 3: Cross multiply
    20,215,376.55x = 30,302,397.68 × 9,964,470.15
  4. Step 4: Simplify right side
    20,215,376.55x = 301,947,337,105,966.94
  5. Step 5: Solve for x
    x = 301,947,337,105,966.94/20,215,376.55
  6. Step 6: Final answer
    x = 14,936,518.07

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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.