Home / 12,801,397.57-19,206,934.06-7,687,392.80

Finding the Fourth Proportional to 12,801,397.57, 19,206,934.06 and 7,687,392.80

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Solution

The fourth proportional to 12,801,397.57, 19,206,934.06 and 7,687,392.80 is: 11,533,994.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,801,397.57 : 19,206,934.06 = 7,687,392.80 : x
  2. Step 2: Convert to fraction form
    12,801,397.57/19,206,934.06 = 7,687,392.80/x
  3. Step 3: Cross multiply
    12,801,397.57x = 19,206,934.06 × 7,687,392.80
  4. Step 4: Simplify right side
    12,801,397.57x = 147,651,246,487,665.62
  5. Step 5: Solve for x
    x = 147,651,246,487,665.62/12,801,397.57
  6. Step 6: Final answer
    x = 11,533,994.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.