Home / 442,547,289.20-663,373,036.20-260,700,863.60

Finding the Fourth Proportional to 442,547,289.20, 663,373,036.20 and 260,700,863.60

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Solution

The fourth proportional to 442,547,289.20, 663,373,036.20 and 260,700,863.60 is: 390,787,442.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,547,289.20 : 663,373,036.20 = 260,700,863.60 : x
  2. Step 2: Convert to fraction form
    442,547,289.20/663,373,036.20 = 260,700,863.60/x
  3. Step 3: Cross multiply
    442,547,289.20x = 663,373,036.20 × 260,700,863.60
  4. Step 4: Simplify right side
    442,547,289.20x = 172,941,923,426,294,080
  5. Step 5: Solve for x
    x = 172,941,923,426,294,080/442,547,289.20
  6. Step 6: Final answer
    x = 390,787,442.71

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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.