Home / 18,372,680.70-27,559,021.05-12,633,117.90

Finding the Fourth Proportional to 18,372,680.70, 27,559,021.05 and 12,633,117.90

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Solution

The fourth proportional to 18,372,680.70, 27,559,021.05 and 12,633,117.90 is: 18,949,676.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,372,680.70 : 27,559,021.05 = 12,633,117.90 : x
  2. Step 2: Convert to fraction form
    18,372,680.70/27,559,021.05 = 12,633,117.90/x
  3. Step 3: Cross multiply
    18,372,680.70x = 27,559,021.05 × 12,633,117.90
  4. Step 4: Simplify right side
    18,372,680.70x = 348,156,362,133,231.81
  5. Step 5: Solve for x
    x = 348,156,362,133,231.81/18,372,680.70
  6. Step 6: Final answer
    x = 18,949,676.85

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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.