Home / 8,959,940.20-13,439,910.30-8,078,141.80

Finding the Fourth Proportional to 8,959,940.20, 13,439,910.30 and 8,078,141.80

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Solution

The fourth proportional to 8,959,940.20, 13,439,910.30 and 8,078,141.80 is: 12,117,212.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,959,940.20 : 13,439,910.30 = 8,078,141.80 : x
  2. Step 2: Convert to fraction form
    8,959,940.20/13,439,910.30 = 8,078,141.80/x
  3. Step 3: Cross multiply
    8,959,940.20x = 13,439,910.30 × 8,078,141.80
  4. Step 4: Simplify right side
    8,959,940.20x = 108,569,501,182,680.55
  5. Step 5: Solve for x
    x = 108,569,501,182,680.55/8,959,940.20
  6. Step 6: Final answer
    x = 12,117,212.70

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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.