Home / 667,689,336.80-1,001,067,445.20-394,919,698.40

Finding the Fourth Proportional to 667,689,336.80, 1,001,067,445.20 and 394,919,698.40

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Solution

The fourth proportional to 667,689,336.80, 1,001,067,445.20 and 394,919,698.40 is: 592,103,590.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,689,336.80 : 1,001,067,445.20 = 394,919,698.40 : x
  2. Step 2: Convert to fraction form
    667,689,336.80/1,001,067,445.20 = 394,919,698.40/x
  3. Step 3: Cross multiply
    667,689,336.80x = 1,001,067,445.20 × 394,919,698.40
  4. Step 4: Simplify right side
    667,689,336.80x = 395,341,253,536,442,496
  5. Step 5: Solve for x
    x = 395,341,253,536,442,496/667,689,336.80
  6. Step 6: Final answer
    x = 592,103,590.32

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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.