Home / 667,340,257.20-1,001,010,385.80-380,685,793.20

Finding the Fourth Proportional to 667,340,257.20, 1,001,010,385.80 and 380,685,793.20

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Solution

The fourth proportional to 667,340,257.20, 1,001,010,385.80 and 380,685,793.20 is: 571,028,689.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,340,257.20 : 1,001,010,385.80 = 380,685,793.20 : x
  2. Step 2: Convert to fraction form
    667,340,257.20/1,001,010,385.80 = 380,685,793.20/x
  3. Step 3: Cross multiply
    667,340,257.20x = 1,001,010,385.80 × 380,685,793.20
  4. Step 4: Simplify right side
    667,340,257.20x = 381,070,432,719,710,976
  5. Step 5: Solve for x
    x = 381,070,432,719,710,976/667,340,257.20
  6. Step 6: Final answer
    x = 571,028,689.80

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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.