Home / 266,283,040.40-399,424,560.60-129,898,221.20

Finding the Fourth Proportional to 266,283,040.40, 399,424,560.60 and 129,898,221.20

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Solution

The fourth proportional to 266,283,040.40, 399,424,560.60 and 129,898,221.20 is: 194,847,331.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,283,040.40 : 399,424,560.60 = 129,898,221.20 : x
  2. Step 2: Convert to fraction form
    266,283,040.40/399,424,560.60 = 129,898,221.20/x
  3. Step 3: Cross multiply
    266,283,040.40x = 399,424,560.60 × 129,898,221.20
  4. Step 4: Simplify right side
    266,283,040.40x = 51,884,539,925,531,608
  5. Step 5: Solve for x
    x = 51,884,539,925,531,608/266,283,040.40
  6. Step 6: Final answer
    x = 194,847,331.80

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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.