Home / 442,488,008.20-663,732,012.30-306,327,137.80

Finding the Fourth Proportional to 442,488,008.20, 663,732,012.30 and 306,327,137.80

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Solution

The fourth proportional to 442,488,008.20, 663,732,012.30 and 306,327,137.80 is: 459,490,706.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,488,008.20 : 663,732,012.30 = 306,327,137.80 : x
  2. Step 2: Convert to fraction form
    442,488,008.20/663,732,012.30 = 306,327,137.80/x
  3. Step 3: Cross multiply
    442,488,008.20x = 663,732,012.30 × 306,327,137.80
  4. Step 4: Simplify right side
    442,488,008.20x = 203,319,127,594,093,376
  5. Step 5: Solve for x
    x = 203,319,127,594,093,376/442,488,008.20
  6. Step 6: Final answer
    x = 459,490,706.70

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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.