Home / 266,121,423.60-399,480,733.80-205,804,546.80

Finding the Fourth Proportional to 266,121,423.60, 399,480,733.80 and 205,804,546.80

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Solution

The fourth proportional to 266,121,423.60, 399,480,733.80 and 205,804,546.80 is: 308,937,740.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,121,423.60 : 399,480,733.80 = 205,804,546.80 : x
  2. Step 2: Convert to fraction form
    266,121,423.60/399,480,733.80 = 205,804,546.80/x
  3. Step 3: Cross multiply
    266,121,423.60x = 399,480,733.80 × 205,804,546.80
  4. Step 4: Simplify right side
    266,121,423.60x = 82,214,951,375,040,448
  5. Step 5: Solve for x
    x = 82,214,951,375,040,448/266,121,423.60
  6. Step 6: Final answer
    x = 308,937,740.76

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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.