Home / 442,368,000.80-663,552,001.20-280,992,154.40

Finding the Fourth Proportional to 442,368,000.80, 663,552,001.20 and 280,992,154.40

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Solution

The fourth proportional to 442,368,000.80, 663,552,001.20 and 280,992,154.40 is: 421,488,231.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,368,000.80 : 663,552,001.20 = 280,992,154.40 : x
  2. Step 2: Convert to fraction form
    442,368,000.80/663,552,001.20 = 280,992,154.40/x
  3. Step 3: Cross multiply
    442,368,000.80x = 663,552,001.20 × 280,992,154.40
  4. Step 4: Simplify right side
    442,368,000.80x = 186,452,906,373,619,392
  5. Step 5: Solve for x
    x = 186,452,906,373,619,392/442,368,000.80
  6. Step 6: Final answer
    x = 421,488,231.60

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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.