Home / 21,651,260.48-29,878,729.12-12,949,432.92

Finding the Fourth Proportional to 21,651,260.48, 29,878,729.12 and 12,949,432.92

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Solution

The fourth proportional to 21,651,260.48, 29,878,729.12 and 12,949,432.92 is: 17,870,211.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,651,260.48 : 29,878,729.12 = 12,949,432.92 : x
  2. Step 2: Convert to fraction form
    21,651,260.48/29,878,729.12 = 12,949,432.92/x
  3. Step 3: Cross multiply
    21,651,260.48x = 29,878,729.12 × 12,949,432.92
  4. Step 4: Simplify right side
    21,651,260.48x = 386,912,598,474,290.62
  5. Step 5: Solve for x
    x = 386,912,598,474,290.62/21,651,260.48
  6. Step 6: Final answer
    x = 17,870,211.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.