Home / 20,386,050.44-28,132,753.55-11,218,693.19

Finding the Fourth Proportional to 20,386,050.44, 28,132,753.55 and 11,218,693.19

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Solution

The fourth proportional to 20,386,050.44, 28,132,753.55 and 11,218,693.19 is: 15,481,798.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,386,050.44 : 28,132,753.55 = 11,218,693.19 : x
  2. Step 2: Convert to fraction form
    20,386,050.44/28,132,753.55 = 11,218,693.19/x
  3. Step 3: Cross multiply
    20,386,050.44x = 28,132,753.55 × 11,218,693.19
  4. Step 4: Simplify right side
    20,386,050.44x = 315,612,730,470,576.12
  5. Step 5: Solve for x
    x = 315,612,730,470,576.12/20,386,050.44
  6. Step 6: Final answer
    x = 15,481,798.77

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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.