Home / 25,981,712.20-38,939,390.70-19,968,272.20

Finding the Fourth Proportional to 25,981,712.20, 38,939,390.70 and 19,968,272.20

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Solution

The fourth proportional to 25,981,712.20, 38,939,390.70 and 19,968,272.20 is: 29,926,909.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,981,712.20 : 38,939,390.70 = 19,968,272.20 : x
  2. Step 2: Convert to fraction form
    25,981,712.20/38,939,390.70 = 19,968,272.20/x
  3. Step 3: Cross multiply
    25,981,712.20x = 38,939,390.70 × 19,968,272.20
  4. Step 4: Simplify right side
    25,981,712.20x = 777,552,352,799,748.62
  5. Step 5: Solve for x
    x = 777,552,352,799,748.62/25,981,712.20
  6. Step 6: Final answer
    x = 29,926,909.62

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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.