Home / 12,309,279.43-16,989,152.85-8,115,601.00

Finding the Fourth Proportional to 12,309,279.43, 16,989,152.85 and 8,115,601.00

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Solution

The fourth proportional to 12,309,279.43, 16,989,152.85 and 8,115,601.00 is: 11,201,076.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,309,279.43 : 16,989,152.85 = 8,115,601.00 : x
  2. Step 2: Convert to fraction form
    12,309,279.43/16,989,152.85 = 8,115,601.00/x
  3. Step 3: Cross multiply
    12,309,279.43x = 16,989,152.85 × 8,115,601.00
  4. Step 4: Simplify right side
    12,309,279.43x = 137,877,185,816,139.97
  5. Step 5: Solve for x
    x = 137,877,185,816,139.97/12,309,279.43
  6. Step 6: Final answer
    x = 11,201,076.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.