Home / 266,635,785.78-399,967,063.11-84,897,135.54

Finding the Fourth Proportional to 266,635,785.78, 399,967,063.11 and 84,897,135.54

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Solution

The fourth proportional to 266,635,785.78, 399,967,063.11 and 84,897,135.54 is: 127,349,964.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,635,785.78 : 399,967,063.11 = 84,897,135.54 : x
  2. Step 2: Convert to fraction form
    266,635,785.78/399,967,063.11 = 84,897,135.54/x
  3. Step 3: Cross multiply
    266,635,785.78x = 399,967,063.11 × 84,897,135.54
  4. Step 4: Simplify right side
    266,635,785.78x = 33,956,057,968,385,408
  5. Step 5: Solve for x
    x = 33,956,057,968,385,408/266,635,785.78
  6. Step 6: Final answer
    x = 127,349,964.93

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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.