Home / 205,126,986.80-307,690,480.20-61,519,818.80

Finding the Fourth Proportional to 205,126,986.80, 307,690,480.20 and 61,519,818.80

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Solution

The fourth proportional to 205,126,986.80, 307,690,480.20 and 61,519,818.80 is: 92,279,728.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,126,986.80 : 307,690,480.20 = 61,519,818.80 : x
  2. Step 2: Convert to fraction form
    205,126,986.80/307,690,480.20 = 61,519,818.80/x
  3. Step 3: Cross multiply
    205,126,986.80x = 307,690,480.20 × 61,519,818.80
  4. Step 4: Simplify right side
    205,126,986.80x = 18,929,062,588,388,988
  5. Step 5: Solve for x
    x = 18,929,062,588,388,988/205,126,986.80
  6. Step 6: Final answer
    x = 92,279,728.20

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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.