Home / 442,488,010.20-663,732,015.30-306,327,139.80

Finding the Fourth Proportional to 442,488,010.20, 663,732,015.30 and 306,327,139.80

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Solution

The fourth proportional to 442,488,010.20, 663,732,015.30 and 306,327,139.80 is: 459,490,709.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,488,010.20 : 663,732,015.30 = 306,327,139.80 : x
  2. Step 2: Convert to fraction form
    442,488,010.20/663,732,015.30 = 306,327,139.80/x
  3. Step 3: Cross multiply
    442,488,010.20x = 663,732,015.30 × 306,327,139.80
  4. Step 4: Simplify right side
    442,488,010.20x = 203,319,129,840,538,848
  5. Step 5: Solve for x
    x = 203,319,129,840,538,848/442,488,010.20
  6. Step 6: Final answer
    x = 459,490,709.70

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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.