Home / 629,785,540.80-944,678,311.20-400,769,899.20

Finding the Fourth Proportional to 629,785,540.80, 944,678,311.20 and 400,769,899.20

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Solution

The fourth proportional to 629,785,540.80, 944,678,311.20 and 400,769,899.20 is: 601,154,848.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,785,540.80 : 944,678,311.20 = 400,769,899.20 : x
  2. Step 2: Convert to fraction form
    629,785,540.80/944,678,311.20 = 400,769,899.20/x
  3. Step 3: Cross multiply
    629,785,540.80x = 944,678,311.20 × 400,769,899.20
  4. Step 4: Simplify right side
    629,785,540.80x = 378,598,631,556,050,240
  5. Step 5: Solve for x
    x = 378,598,631,556,050,240/629,785,540.80
  6. Step 6: Final answer
    x = 601,154,848.80

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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.