Home / 419,851,814.20-629,777,721.30-267,174,719.80

Finding the Fourth Proportional to 419,851,814.20, 629,777,721.30 and 267,174,719.80

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Solution

The fourth proportional to 419,851,814.20, 629,777,721.30 and 267,174,719.80 is: 400,762,079.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,851,814.20 : 629,777,721.30 = 267,174,719.80 : x
  2. Step 2: Convert to fraction form
    419,851,814.20/629,777,721.30 = 267,174,719.80/x
  3. Step 3: Cross multiply
    419,851,814.20x = 629,777,721.30 × 267,174,719.80
  4. Step 4: Simplify right side
    419,851,814.20x = 168,260,686,224,609,984
  5. Step 5: Solve for x
    x = 168,260,686,224,609,984/419,851,814.20
  6. Step 6: Final answer
    x = 400,762,079.70

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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.