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Finding the Fourth Proportional to 800,907,175.20, 1,105,363,874.88 and 578,608,073.76

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Solution

The fourth proportional to 800,907,175.20, 1,105,363,874.88 and 578,608,073.76 is: 798,560,035.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,907,175.20 : 1,105,363,874.88 = 578,608,073.76 : x
  2. Step 2: Convert to fraction form
    800,907,175.20/1,105,363,874.88 = 578,608,073.76/x
  3. Step 3: Cross multiply
    800,907,175.20x = 1,105,363,874.88 × 578,608,073.76
  4. Step 4: Simplify right side
    800,907,175.20x = 639,572,462,448,206,464
  5. Step 5: Solve for x
    x = 639,572,462,448,206,464/800,907,175.20
  6. Step 6: Final answer
    x = 798,560,035.74

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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.