Home / 418,302,502.20-627,453,753.30-372,385,999.80

Finding the Fourth Proportional to 418,302,502.20, 627,453,753.30 and 372,385,999.80

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Solution

The fourth proportional to 418,302,502.20, 627,453,753.30 and 372,385,999.80 is: 558,578,999.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,302,502.20 : 627,453,753.30 = 372,385,999.80 : x
  2. Step 2: Convert to fraction form
    418,302,502.20/627,453,753.30 = 372,385,999.80/x
  3. Step 3: Cross multiply
    418,302,502.20x = 627,453,753.30 × 372,385,999.80
  4. Step 4: Simplify right side
    418,302,502.20x = 233,654,993,250,883,040
  5. Step 5: Solve for x
    x = 233,654,993,250,883,040/418,302,502.20
  6. Step 6: Final answer
    x = 558,578,999.70

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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.