Home / 521,690,959.12-782,565,748.80-167,196,089.92

Finding the Fourth Proportional to 521,690,959.12, 782,565,748.80 and 167,196,089.92

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Solution

The fourth proportional to 521,690,959.12, 782,565,748.80 and 167,196,089.92 is: 250,803,528.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,690,959.12 : 782,565,748.80 = 167,196,089.92 : x
  2. Step 2: Convert to fraction form
    521,690,959.12/782,565,748.80 = 167,196,089.92/x
  3. Step 3: Cross multiply
    521,690,959.12x = 782,565,748.80 × 167,196,089.92
  4. Step 4: Simplify right side
    521,690,959.12x = 130,841,933,304,676,912
  5. Step 5: Solve for x
    x = 130,841,933,304,676,912/521,690,959.12
  6. Step 6: Final answer
    x = 250,803,528.44

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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.