Home / 218,820,040.80-328,230,061.20-197,656,879.20

Finding the Fourth Proportional to 218,820,040.80, 328,230,061.20 and 197,656,879.20

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Solution

The fourth proportional to 218,820,040.80, 328,230,061.20 and 197,656,879.20 is: 296,485,318.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,820,040.80 : 328,230,061.20 = 197,656,879.20 : x
  2. Step 2: Convert to fraction form
    218,820,040.80/328,230,061.20 = 197,656,879.20/x
  3. Step 3: Cross multiply
    218,820,040.80x = 328,230,061.20 × 197,656,879.20
  4. Step 4: Simplify right side
    218,820,040.80x = 64,876,929,556,417,000
  5. Step 5: Solve for x
    x = 64,876,929,556,417,000/218,820,040.80
  6. Step 6: Final answer
    x = 296,485,318.80

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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.