Home / 1,200,891,337.20-1,802,498,982.82-579,543,972.80

Finding the Fourth Proportional to 1,200,891,337.20, 1,802,498,982.82 and 579,543,972.80

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Solution

The fourth proportional to 1,200,891,337.20, 1,802,498,982.82 and 579,543,972.80 is: 869,876,723.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,891,337.20 : 1,802,498,982.82 = 579,543,972.80 : x
  2. Step 2: Convert to fraction form
    1,200,891,337.20/1,802,498,982.82 = 579,543,972.80/x
  3. Step 3: Cross multiply
    1,200,891,337.20x = 1,802,498,982.82 × 579,543,972.80
  4. Step 4: Simplify right side
    1,200,891,337.20x = 1,044,627,421,461,000,320
  5. Step 5: Solve for x
    x = 1,044,627,421,461,000,320/1,200,891,337.20
  6. Step 6: Final answer
    x = 869,876,723.32

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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.