Home / 20,819,775.11-28,732,187.66-11,527,345.38

Finding the Fourth Proportional to 20,819,775.11, 28,732,187.66 and 11,527,345.38

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Solution

The fourth proportional to 20,819,775.11, 28,732,187.66 and 11,527,345.38 is: 15,908,233.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,819,775.11 : 28,732,187.66 = 11,527,345.38 : x
  2. Step 2: Convert to fraction form
    20,819,775.11/28,732,187.66 = 11,527,345.38/x
  3. Step 3: Cross multiply
    20,819,775.11x = 28,732,187.66 × 11,527,345.38
  4. Step 4: Simplify right side
    20,819,775.11x = 331,205,850,708,612.44
  5. Step 5: Solve for x
    x = 331,205,850,708,612.44/20,819,775.11
  6. Step 6: Final answer
    x = 15,908,233.83

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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.