Home / 813,345,791.40-1,122,428,555.46-442,067,711.40

Finding the Fourth Proportional to 813,345,791.40, 1,122,428,555.46 and 442,067,711.40

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Solution

The fourth proportional to 813,345,791.40, 1,122,428,555.46 and 442,067,711.40 is: 610,059,617.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,345,791.40 : 1,122,428,555.46 = 442,067,711.40 : x
  2. Step 2: Convert to fraction form
    813,345,791.40/1,122,428,555.46 = 442,067,711.40/x
  3. Step 3: Cross multiply
    813,345,791.40x = 1,122,428,555.46 × 442,067,711.40
  4. Step 4: Simplify right side
    813,345,791.40x = 496,189,422,722,210,176
  5. Step 5: Solve for x
    x = 496,189,422,722,210,176/813,345,791.40
  6. Step 6: Final answer
    x = 610,059,617.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.