Home / 12,948,807.92-17,869,352.24-7,147,588.15

Finding the Fourth Proportional to 12,948,807.92, 17,869,352.24 and 7,147,588.15

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Solution

The fourth proportional to 12,948,807.92, 17,869,352.24 and 7,147,588.15 is: 9,863,670.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,948,807.92 : 17,869,352.24 = 7,147,588.15 : x
  2. Step 2: Convert to fraction form
    12,948,807.92/17,869,352.24 = 7,147,588.15/x
  3. Step 3: Cross multiply
    12,948,807.92x = 17,869,352.24 × 7,147,588.15
  4. Step 4: Simplify right side
    12,948,807.92x = 127,722,770,193,715.23
  5. Step 5: Solve for x
    x = 127,722,770,193,715.23/12,948,807.92
  6. Step 6: Final answer
    x = 9,863,670.15

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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.