Home / 362,498,666.40-543,747,999.60-103,729,327.20

Finding the Fourth Proportional to 362,498,666.40, 543,747,999.60 and 103,729,327.20

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Solution

The fourth proportional to 362,498,666.40, 543,747,999.60 and 103,729,327.20 is: 155,593,990.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,498,666.40 : 543,747,999.60 = 103,729,327.20 : x
  2. Step 2: Convert to fraction form
    362,498,666.40/543,747,999.60 = 103,729,327.20/x
  3. Step 3: Cross multiply
    362,498,666.40x = 543,747,999.60 × 103,729,327.20
  4. Step 4: Simplify right side
    362,498,666.40x = 56,402,614,164,853,872
  5. Step 5: Solve for x
    x = 56,402,614,164,853,872/362,498,666.40
  6. Step 6: Final answer
    x = 155,593,990.80

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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.