Home / 25,746,657.80-38,644,869.90-12,981,576.20

Finding the Fourth Proportional to 25,746,657.80, 38,644,869.90 and 12,981,576.20

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Solution

The fourth proportional to 25,746,657.80, 38,644,869.90 and 12,981,576.20 is: 19,484,910.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,746,657.80 : 38,644,869.90 = 12,981,576.20 : x
  2. Step 2: Convert to fraction form
    25,746,657.80/38,644,869.90 = 12,981,576.20/x
  3. Step 3: Cross multiply
    25,746,657.80x = 38,644,869.90 × 12,981,576.20
  4. Step 4: Simplify right side
    25,746,657.80x = 501,671,323,345,936.31
  5. Step 5: Solve for x
    x = 501,671,323,345,936.31/25,746,657.80
  6. Step 6: Final answer
    x = 19,484,910.52

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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.