Home / 18,087,385.20-27,131,077.80-12,347,822.40

Finding the Fourth Proportional to 18,087,385.20, 27,131,077.80 and 12,347,822.40

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Solution

The fourth proportional to 18,087,385.20, 27,131,077.80 and 12,347,822.40 is: 18,521,733.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,087,385.20 : 27,131,077.80 = 12,347,822.40 : x
  2. Step 2: Convert to fraction form
    18,087,385.20/27,131,077.80 = 12,347,822.40/x
  3. Step 3: Cross multiply
    18,087,385.20x = 27,131,077.80 × 12,347,822.40
  4. Step 4: Simplify right side
    18,087,385.20x = 335,009,730,194,982.75
  5. Step 5: Solve for x
    x = 335,009,730,194,982.75/18,087,385.20
  6. Step 6: Final answer
    x = 18,521,733.60

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1.5x scale

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.