Home / 543,754,272.80-815,631,409.20-155,589,766.40

Finding the Fourth Proportional to 543,754,272.80, 815,631,409.20 and 155,589,766.40

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Solution

The fourth proportional to 543,754,272.80, 815,631,409.20 and 155,589,766.40 is: 233,384,649.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,754,272.80 : 815,631,409.20 = 155,589,766.40 : x
  2. Step 2: Convert to fraction form
    543,754,272.80/815,631,409.20 = 155,589,766.40/x
  3. Step 3: Cross multiply
    543,754,272.80x = 815,631,409.20 × 155,589,766.40
  4. Step 4: Simplify right side
    543,754,272.80x = 126,903,900,425,930,816
  5. Step 5: Solve for x
    x = 126,903,900,425,930,816/543,754,272.80
  6. Step 6: Final answer
    x = 233,384,649.60

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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.