Home / 25,746,772.80-38,645,042.40-12,981,691.20

Finding the Fourth Proportional to 25,746,772.80, 38,645,042.40 and 12,981,691.20

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Solution

The fourth proportional to 25,746,772.80, 38,645,042.40 and 12,981,691.20 is: 19,485,083.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,746,772.80 : 38,645,042.40 = 12,981,691.20 : x
  2. Step 2: Convert to fraction form
    25,746,772.80/38,645,042.40 = 12,981,691.20/x
  3. Step 3: Cross multiply
    25,746,772.80x = 38,645,042.40 × 12,981,691.20
  4. Step 4: Simplify right side
    25,746,772.80x = 501,678,006,847,706.81
  5. Step 5: Solve for x
    x = 501,678,006,847,706.81/25,746,772.80
  6. Step 6: Final answer
    x = 19,485,083.07

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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.