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Finding the Fourth Proportional to 394,891,336.80, 592,337,005.20 and 201,181,092.30

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Solution

The fourth proportional to 394,891,336.80, 592,337,005.20 and 201,181,092.30 is: 301,771,638.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,891,336.80 : 592,337,005.20 = 201,181,092.30 : x
  2. Step 2: Convert to fraction form
    394,891,336.80/592,337,005.20 = 201,181,092.30/x
  3. Step 3: Cross multiply
    394,891,336.80x = 592,337,005.20 × 201,181,092.30
  4. Step 4: Simplify right side
    394,891,336.80x = 119,167,005,715,846,800
  5. Step 5: Solve for x
    x = 119,167,005,715,846,800/394,891,336.80
  6. Step 6: Final answer
    x = 301,771,638.45

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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.