Home / 442,547,287.20-663,373,033.20-260,700,861.60

Finding the Fourth Proportional to 442,547,287.20, 663,373,033.20 and 260,700,861.60

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Solution

The fourth proportional to 442,547,287.20, 663,373,033.20 and 260,700,861.60 is: 390,787,439.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,547,287.20 : 663,373,033.20 = 260,700,861.60 : x
  2. Step 2: Convert to fraction form
    442,547,287.20/663,373,033.20 = 260,700,861.60/x
  3. Step 3: Cross multiply
    442,547,287.20x = 663,373,033.20 × 260,700,861.60
  4. Step 4: Simplify right side
    442,547,287.20x = 172,941,921,317,445,408
  5. Step 5: Solve for x
    x = 172,941,921,317,445,408/442,547,287.20
  6. Step 6: Final answer
    x = 390,787,439.71

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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.