Home / 782,682,695.20-1,174,024,042.80-442,944,071.20

Finding the Fourth Proportional to 782,682,695.20, 1,174,024,042.80 and 442,944,071.20

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Solution

The fourth proportional to 782,682,695.20, 1,174,024,042.80 and 442,944,071.20 is: 664,416,106.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,682,695.20 : 1,174,024,042.80 = 442,944,071.20 : x
  2. Step 2: Convert to fraction form
    782,682,695.20/1,174,024,042.80 = 442,944,071.20/x
  3. Step 3: Cross multiply
    782,682,695.20x = 1,174,024,042.80 × 442,944,071.20
  4. Step 4: Simplify right side
    782,682,695.20x = 520,026,989,204,515,008
  5. Step 5: Solve for x
    x = 520,026,989,204,515,008/782,682,695.20
  6. Step 6: Final answer
    x = 664,416,106.80

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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.