Home / 7,161,446.28-9,882,921.87-3,898,354.80

Finding the Fourth Proportional to 7,161,446.28, 9,882,921.87 and 3,898,354.80

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Solution

The fourth proportional to 7,161,446.28, 9,882,921.87 and 3,898,354.80 is: 5,379,798.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,161,446.28 : 9,882,921.87 = 3,898,354.80 : x
  2. Step 2: Convert to fraction form
    7,161,446.28/9,882,921.87 = 3,898,354.80/x
  3. Step 3: Cross multiply
    7,161,446.28x = 9,882,921.87 × 3,898,354.80
  4. Step 4: Simplify right side
    7,161,446.28x = 38,527,135,909,939.47
  5. Step 5: Solve for x
    x = 38,527,135,909,939.47/7,161,446.28
  6. Step 6: Final answer
    x = 5,379,798.21

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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.