Home / 12,948,812.67-17,869,358.78-7,147,592.91

Finding the Fourth Proportional to 12,948,812.67, 17,869,358.78 and 7,147,592.91

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Solution

The fourth proportional to 12,948,812.67, 17,869,358.78 and 7,147,592.91 is: 9,863,676.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,948,812.67 : 17,869,358.78 = 7,147,592.91 : x
  2. Step 2: Convert to fraction form
    12,948,812.67/17,869,358.78 = 7,147,592.91/x
  3. Step 3: Cross multiply
    12,948,812.67x = 17,869,358.78 × 7,147,592.91
  4. Step 4: Simplify right side
    12,948,812.67x = 127,722,902,086,436.28
  5. Step 5: Solve for x
    x = 127,722,902,086,436.28/12,948,812.67
  6. Step 6: Final answer
    x = 9,863,676.72

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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.