Home / 266,350,955.80-398,959,563.30-221,001,323.80

Finding the Fourth Proportional to 266,350,955.80, 398,959,563.30 and 221,001,323.80

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Solution

The fourth proportional to 266,350,955.80, 398,959,563.30 and 221,001,323.80 is: 331,031,632.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,350,955.80 : 398,959,563.30 = 221,001,323.80 : x
  2. Step 2: Convert to fraction form
    266,350,955.80/398,959,563.30 = 221,001,323.80/x
  3. Step 3: Cross multiply
    266,350,955.80x = 398,959,563.30 × 221,001,323.80
  4. Step 4: Simplify right side
    266,350,955.80x = 88,170,591,631,969,904
  5. Step 5: Solve for x
    x = 88,170,591,631,969,904/266,350,955.80
  6. Step 6: Final answer
    x = 331,031,632.18

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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.