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Finding the Fourth Proportional to 398,608,049.80, 597,912,074.70 and 367,997,048.20

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Solution

The fourth proportional to 398,608,049.80, 597,912,074.70 and 367,997,048.20 is: 551,995,572.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,608,049.80 : 597,912,074.70 = 367,997,048.20 : x
  2. Step 2: Convert to fraction form
    398,608,049.80/597,912,074.70 = 367,997,048.20/x
  3. Step 3: Cross multiply
    398,608,049.80x = 597,912,074.70 × 367,997,048.20
  4. Step 4: Simplify right side
    398,608,049.80x = 220,029,878,572,737,920
  5. Step 5: Solve for x
    x = 220,029,878,572,737,920/398,608,049.80
  6. Step 6: Final answer
    x = 551,995,572.30

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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.