Home / 20,672,374.50-28,527,876.81-11,507,182.38

Finding the Fourth Proportional to 20,672,374.50, 28,527,876.81 and 11,507,182.38

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Solution

The fourth proportional to 20,672,374.50, 28,527,876.81 and 11,507,182.38 is: 15,879,911.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,672,374.50 : 28,527,876.81 = 11,507,182.38 : x
  2. Step 2: Convert to fraction form
    20,672,374.50/28,527,876.81 = 11,507,182.38/x
  3. Step 3: Cross multiply
    20,672,374.50x = 28,527,876.81 × 11,507,182.38
  4. Step 4: Simplify right side
    20,672,374.50x = 328,275,481,366,842.62
  5. Step 5: Solve for x
    x = 328,275,481,366,842.62/20,672,374.50
  6. Step 6: Final answer
    x = 15,879,911.68

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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.