Home / 386,327,687.60-579,491,531.40-127,582,842.80

Finding the Fourth Proportional to 386,327,687.60, 579,491,531.40 and 127,582,842.80

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Solution

The fourth proportional to 386,327,687.60, 579,491,531.40 and 127,582,842.80 is: 191,374,264.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,327,687.60 : 579,491,531.40 = 127,582,842.80 : x
  2. Step 2: Convert to fraction form
    386,327,687.60/579,491,531.40 = 127,582,842.80/x
  3. Step 3: Cross multiply
    386,327,687.60x = 579,491,531.40 × 127,582,842.80
  4. Step 4: Simplify right side
    386,327,687.60x = 73,933,176,954,537,456
  5. Step 5: Solve for x
    x = 73,933,176,954,537,456/386,327,687.60
  6. Step 6: Final answer
    x = 191,374,264.20

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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.