Home / 12,948,809.92-17,869,354.99-7,147,590.15

Finding the Fourth Proportional to 12,948,809.92, 17,869,354.99 and 7,147,590.15

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Solution

The fourth proportional to 12,948,809.92, 17,869,354.99 and 7,147,590.15 is: 9,863,672.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,948,809.92 : 17,869,354.99 = 7,147,590.15 : x
  2. Step 2: Convert to fraction form
    12,948,809.92/17,869,354.99 = 7,147,590.15/x
  3. Step 3: Cross multiply
    12,948,809.92x = 17,869,354.99 × 7,147,590.15
  4. Step 4: Simplify right side
    12,948,809.92x = 127,722,825,713,377.34
  5. Step 5: Solve for x
    x = 127,722,825,713,377.34/12,948,809.92
  6. Step 6: Final answer
    x = 9,863,672.92

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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.