Home / 266,283,039.40-399,424,559.10-129,898,220.20

Finding the Fourth Proportional to 266,283,039.40, 399,424,559.10 and 129,898,220.20

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Solution

The fourth proportional to 266,283,039.40, 399,424,559.10 and 129,898,220.20 is: 194,847,330.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,283,039.40 : 399,424,559.10 = 129,898,220.20 : x
  2. Step 2: Convert to fraction form
    266,283,039.40/399,424,559.10 = 129,898,220.20/x
  3. Step 3: Cross multiply
    266,283,039.40x = 399,424,559.10 × 129,898,220.20
  4. Step 4: Simplify right side
    266,283,039.40x = 51,884,539,331,259,720
  5. Step 5: Solve for x
    x = 51,884,539,331,259,720/266,283,039.40
  6. Step 6: Final answer
    x = 194,847,330.30

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1.5x scale

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.