Home / 20,386,087.29-28,132,804.58-11,218,730.04

Finding the Fourth Proportional to 20,386,087.29, 28,132,804.58 and 11,218,730.04

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Solution

The fourth proportional to 20,386,087.29, 28,132,804.58 and 11,218,730.04 is: 15,481,849.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,386,087.29 : 28,132,804.58 = 11,218,730.04 : x
  2. Step 2: Convert to fraction form
    20,386,087.29/28,132,804.58 = 11,218,730.04/x
  3. Step 3: Cross multiply
    20,386,087.29x = 28,132,804.58 × 11,218,730.04
  4. Step 4: Simplify right side
    20,386,087.29x = 315,614,339,795,001.88
  5. Step 5: Solve for x
    x = 315,614,339,795,001.88/20,386,087.29
  6. Step 6: Final answer
    x = 15,481,849.72

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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.