Home / 12,949,337.60-19,424,006.40-11,857,587.20

Finding the Fourth Proportional to 12,949,337.60, 19,424,006.40 and 11,857,587.20

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Solution

The fourth proportional to 12,949,337.60, 19,424,006.40 and 11,857,587.20 is: 17,786,380.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,949,337.60 : 19,424,006.40 = 11,857,587.20 : x
  2. Step 2: Convert to fraction form
    12,949,337.60/19,424,006.40 = 11,857,587.20/x
  3. Step 3: Cross multiply
    12,949,337.60x = 19,424,006.40 × 11,857,587.20
  4. Step 4: Simplify right side
    12,949,337.60x = 230,321,849,661,358.06
  5. Step 5: Solve for x
    x = 230,321,849,661,358.06/12,949,337.60
  6. Step 6: Final answer
    x = 17,786,380.80

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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.