Home / 12,109,630.80-18,164,008.80-4,920,961.80

Finding the Fourth Proportional to 12,109,630.80, 18,164,008.80 and 4,920,961.80

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Solution

The fourth proportional to 12,109,630.80, 18,164,008.80 and 4,920,961.80 is: 7,381,264.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,109,630.80 : 18,164,008.80 = 4,920,961.80 : x
  2. Step 2: Convert to fraction form
    12,109,630.80/18,164,008.80 = 4,920,961.80/x
  3. Step 3: Cross multiply
    12,109,630.80x = 18,164,008.80 × 4,920,961.80
  4. Step 4: Simplify right side
    12,109,630.80x = 89,384,393,439,663.84
  5. Step 5: Solve for x
    x = 89,384,393,439,663.84/12,109,630.80
  6. Step 6: Final answer
    x = 7,381,264.95

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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.