Home / 205,126,900.80-307,690,351.20-61,519,732.80

Finding the Fourth Proportional to 205,126,900.80, 307,690,351.20 and 61,519,732.80

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Solution

The fourth proportional to 205,126,900.80, 307,690,351.20 and 61,519,732.80 is: 92,279,599.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,126,900.80 : 307,690,351.20 = 61,519,732.80 : x
  2. Step 2: Convert to fraction form
    205,126,900.80/307,690,351.20 = 61,519,732.80/x
  3. Step 3: Cross multiply
    205,126,900.80x = 307,690,351.20 × 61,519,732.80
  4. Step 4: Simplify right side
    205,126,900.80x = 18,929,028,190,962,156
  5. Step 5: Solve for x
    x = 18,929,028,190,962,156/205,126,900.80
  6. Step 6: Final answer
    x = 92,279,599.20

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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.