Home / 663,551,999.20-995,327,998.80-372,119,960.80

Finding the Fourth Proportional to 663,551,999.20, 995,327,998.80 and 372,119,960.80

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Solution

The fourth proportional to 663,551,999.20, 995,327,998.80 and 372,119,960.80 is: 558,179,941.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,551,999.20 : 995,327,998.80 = 372,119,960.80 : x
  2. Step 2: Convert to fraction form
    663,551,999.20/995,327,998.80 = 372,119,960.80/x
  3. Step 3: Cross multiply
    663,551,999.20x = 995,327,998.80 × 372,119,960.80
  4. Step 4: Simplify right side
    663,551,999.20x = 370,381,415,896,598,464
  5. Step 5: Solve for x
    x = 370,381,415,896,598,464/663,551,999.20
  6. Step 6: Final answer
    x = 558,179,941.20

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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.