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Finding the Fourth Proportional to 266,982,403.80, 400,473,605.70 and 248,275,680.60

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Solution

The fourth proportional to 266,982,403.80, 400,473,605.70 and 248,275,680.60 is: 372,413,520.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,982,403.80 : 400,473,605.70 = 248,275,680.60 : x
  2. Step 2: Convert to fraction form
    266,982,403.80/400,473,605.70 = 248,275,680.60/x
  3. Step 3: Cross multiply
    266,982,403.80x = 400,473,605.70 × 248,275,680.60
  4. Step 4: Simplify right side
    266,982,403.80x = 99,427,857,017,503,536
  5. Step 5: Solve for x
    x = 99,427,857,017,503,536/266,982,403.80
  6. Step 6: Final answer
    x = 372,413,520.90

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1.5x scale

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.