Home / 7,161,471.28-9,882,956.10-3,898,379.80

Finding the Fourth Proportional to 7,161,471.28, 9,882,956.10 and 3,898,379.80

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Solution

The fourth proportional to 7,161,471.28, 9,882,956.10 and 3,898,379.80 is: 5,379,832.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,161,471.28 : 9,882,956.10 = 3,898,379.80 : x
  2. Step 2: Convert to fraction form
    7,161,471.28/9,882,956.10 = 3,898,379.80/x
  3. Step 3: Cross multiply
    7,161,471.28x = 9,882,956.10 × 3,898,379.80
  4. Step 4: Simplify right side
    7,161,471.28x = 38,527,516,424,526.77
  5. Step 5: Solve for x
    x = 38,527,516,424,526.77/7,161,471.28
  6. Step 6: Final answer
    x = 5,379,832.57

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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.