Home / 266,496,021.40-399,744,032.10-205,955,195.80

Finding the Fourth Proportional to 266,496,021.40, 399,744,032.10 and 205,955,195.80

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Solution

The fourth proportional to 266,496,021.40, 399,744,032.10 and 205,955,195.80 is: 308,932,793.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,496,021.40 : 399,744,032.10 = 205,955,195.80 : x
  2. Step 2: Convert to fraction form
    266,496,021.40/399,744,032.10 = 205,955,195.80/x
  3. Step 3: Cross multiply
    266,496,021.40x = 399,744,032.10 × 205,955,195.80
  4. Step 4: Simplify right side
    266,496,021.40x = 82,329,360,401,036,992
  5. Step 5: Solve for x
    x = 82,329,360,401,036,992/266,496,021.40
  6. Step 6: Final answer
    x = 308,932,793.70

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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.