Home / 813,447,218.20-1,122,557,884.46-442,169,249.58

Finding the Fourth Proportional to 813,447,218.20, 1,122,557,884.46 and 442,169,249.58

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Solution

The fourth proportional to 813,447,218.20, 1,122,557,884.46 and 442,169,249.58 is: 610,193,957.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,447,218.20 : 1,122,557,884.46 = 442,169,249.58 : x
  2. Step 2: Convert to fraction form
    813,447,218.20/1,122,557,884.46 = 442,169,249.58/x
  3. Step 3: Cross multiply
    813,447,218.20x = 1,122,557,884.46 × 442,169,249.58
  4. Step 4: Simplify right side
    813,447,218.20x = 496,360,577,381,790,528
  5. Step 5: Solve for x
    x = 496,360,577,381,790,528/813,447,218.20
  6. Step 6: Final answer
    x = 610,193,957.61

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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.