Home / 20,386,095.46-28,132,815.59-11,218,738.21

Finding the Fourth Proportional to 20,386,095.46, 28,132,815.59 and 11,218,738.21

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Solution

The fourth proportional to 20,386,095.46, 28,132,815.59 and 11,218,738.21 is: 15,481,860.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,386,095.46 : 28,132,815.59 = 11,218,738.21 : x
  2. Step 2: Convert to fraction form
    20,386,095.46/28,132,815.59 = 11,218,738.21/x
  3. Step 3: Cross multiply
    20,386,095.46x = 28,132,815.59 × 11,218,738.21
  4. Step 4: Simplify right side
    20,386,095.46x = 315,614,693,214,416.69
  5. Step 5: Solve for x
    x = 315,614,693,214,416.69/20,386,095.46
  6. Step 6: Final answer
    x = 15,481,860.85

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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.