Home / 20,819,776.11-28,732,189.04-11,527,346.38

Finding the Fourth Proportional to 20,819,776.11, 28,732,189.04 and 11,527,346.38

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Solution

The fourth proportional to 20,819,776.11, 28,732,189.04 and 11,527,346.38 is: 15,908,235.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,819,776.11 : 28,732,189.04 = 11,527,346.38 : x
  2. Step 2: Convert to fraction form
    20,819,776.11/28,732,189.04 = 11,527,346.38/x
  3. Step 3: Cross multiply
    20,819,776.11x = 28,732,189.04 × 11,527,346.38
  4. Step 4: Simplify right side
    20,819,776.11x = 331,205,895,319,719.69
  5. Step 5: Solve for x
    x = 331,205,895,319,719.69/20,819,776.11
  6. Step 6: Final answer
    x = 15,908,235.21

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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.