Home / 68,760,788.20-103,129,970.45-20,227,291.52

Finding the Fourth Proportional to 68,760,788.20, 103,129,970.45 and 20,227,291.52

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Solution

The fourth proportional to 68,760,788.20, 103,129,970.45 and 20,227,291.52 is: 30,337,639.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,760,788.20 : 103,129,970.45 = 20,227,291.52 : x
  2. Step 2: Convert to fraction form
    68,760,788.20/103,129,970.45 = 20,227,291.52/x
  3. Step 3: Cross multiply
    68,760,788.20x = 103,129,970.45 × 20,227,291.52
  4. Step 4: Simplify right side
    68,760,788.20x = 2,086,039,976,897,824
  5. Step 5: Solve for x
    x = 2,086,039,976,897,824/68,760,788.20
  6. Step 6: Final answer
    x = 30,337,639.10

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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.