Home / 629,777,720.80-944,666,581.20-400,762,079.20

Finding the Fourth Proportional to 629,777,720.80, 944,666,581.20 and 400,762,079.20

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Solution

The fourth proportional to 629,777,720.80, 944,666,581.20 and 400,762,079.20 is: 601,143,118.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,777,720.80 : 944,666,581.20 = 400,762,079.20 : x
  2. Step 2: Convert to fraction form
    629,777,720.80/944,666,581.20 = 400,762,079.20/x
  3. Step 3: Cross multiply
    629,777,720.80x = 944,666,581.20 × 400,762,079.20
  4. Step 4: Simplify right side
    629,777,720.80x = 378,586,543,232,467,648
  5. Step 5: Solve for x
    x = 378,586,543,232,467,648/629,777,720.80
  6. Step 6: Final answer
    x = 601,143,118.80

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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.