Home / 266,350,952.80-398,959,558.80-221,001,320.80

Finding the Fourth Proportional to 266,350,952.80, 398,959,558.80 and 221,001,320.80

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Solution

The fourth proportional to 266,350,952.80, 398,959,558.80 and 221,001,320.80 is: 331,031,627.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,350,952.80 : 398,959,558.80 = 221,001,320.80 : x
  2. Step 2: Convert to fraction form
    266,350,952.80/398,959,558.80 = 221,001,320.80/x
  3. Step 3: Cross multiply
    266,350,952.80x = 398,959,558.80 × 221,001,320.80
  4. Step 4: Simplify right side
    266,350,952.80x = 88,170,589,440,585,264
  5. Step 5: Solve for x
    x = 88,170,589,440,585,264/266,350,952.80
  6. Step 6: Final answer
    x = 331,031,627.68

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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.