Home / 12,591,787.30-18,887,680.95-4,072,984.90

Finding the Fourth Proportional to 12,591,787.30, 18,887,680.95 and 4,072,984.90

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Solution

The fourth proportional to 12,591,787.30, 18,887,680.95 and 4,072,984.90 is: 6,109,477.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,591,787.30 : 18,887,680.95 = 4,072,984.90 : x
  2. Step 2: Convert to fraction form
    12,591,787.30/18,887,680.95 = 4,072,984.90/x
  3. Step 3: Cross multiply
    12,591,787.30x = 18,887,680.95 × 4,072,984.90
  4. Step 4: Simplify right side
    12,591,787.30x = 76,929,239,305,367.66
  5. Step 5: Solve for x
    x = 76,929,239,305,367.66/12,591,787.30
  6. Step 6: Final answer
    x = 6,109,477.35

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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.