Home / 12,405,538.71-17,117,134.79-7,247,903.85

Finding the Fourth Proportional to 12,405,538.71, 17,117,134.79 and 7,247,903.85

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Solution

The fourth proportional to 12,405,538.71, 17,117,134.79 and 7,247,903.85 is: 10,000,641.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,405,538.71 : 17,117,134.79 = 7,247,903.85 : x
  2. Step 2: Convert to fraction form
    12,405,538.71/17,117,134.79 = 7,247,903.85/x
  3. Step 3: Cross multiply
    12,405,538.71x = 17,117,134.79 × 7,247,903.85
  4. Step 4: Simplify right side
    12,405,538.71x = 124,063,347,109,170.42
  5. Step 5: Solve for x
    x = 124,063,347,109,170.42/12,405,538.71
  6. Step 6: Final answer
    x = 10,000,641.65

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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.