Home / 838,651,306.60-1,257,965,150.10-378,588,737.80

Finding the Fourth Proportional to 838,651,306.60, 1,257,965,150.10 and 378,588,737.80

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Solution

The fourth proportional to 838,651,306.60, 1,257,965,150.10 and 378,588,737.80 is: 567,877,775.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,651,306.60 : 1,257,965,150.10 = 378,588,737.80 : x
  2. Step 2: Convert to fraction form
    838,651,306.60/1,257,965,150.10 = 378,588,737.80/x
  3. Step 3: Cross multiply
    838,651,306.60x = 1,257,965,150.10 × 378,588,737.80
  4. Step 4: Simplify right side
    838,651,306.60x = 476,251,438,372,746,496
  5. Step 5: Solve for x
    x = 476,251,438,372,746,496/838,651,306.60
  6. Step 6: Final answer
    x = 567,877,775.45

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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.