Home / 205,126,989.30-307,690,483.95-61,519,821.30

Finding the Fourth Proportional to 205,126,989.30, 307,690,483.95 and 61,519,821.30

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Solution

The fourth proportional to 205,126,989.30, 307,690,483.95 and 61,519,821.30 is: 92,279,731.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,126,989.30 : 307,690,483.95 = 61,519,821.30 : x
  2. Step 2: Convert to fraction form
    205,126,989.30/307,690,483.95 = 61,519,821.30/x
  3. Step 3: Cross multiply
    205,126,989.30x = 307,690,483.95 × 61,519,821.30
  4. Step 4: Simplify right side
    205,126,989.30x = 18,929,063,588,314,516
  5. Step 5: Solve for x
    x = 18,929,063,588,314,516/205,126,989.30
  6. Step 6: Final answer
    x = 92,279,731.95

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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.