Home / 708,589,972.80-1,062,884,959.20-397,378,123.20

Finding the Fourth Proportional to 708,589,972.80, 1,062,884,959.20 and 397,378,123.20

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Solution

The fourth proportional to 708,589,972.80, 1,062,884,959.20 and 397,378,123.20 is: 596,067,184.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,589,972.80 : 1,062,884,959.20 = 397,378,123.20 : x
  2. Step 2: Convert to fraction form
    708,589,972.80/1,062,884,959.20 = 397,378,123.20/x
  3. Step 3: Cross multiply
    708,589,972.80x = 1,062,884,959.20 × 397,378,123.20
  4. Step 4: Simplify right side
    708,589,972.80x = 422,367,230,264,404,608
  5. Step 5: Solve for x
    x = 422,367,230,264,404,608/708,589,972.80
  6. Step 6: Final answer
    x = 596,067,184.80

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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.