Home / 12,115,838.70-18,183,672.45-12,021,360.30

Finding the Fourth Proportional to 12,115,838.70, 18,183,672.45 and 12,021,360.30

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Solution

The fourth proportional to 12,115,838.70, 18,183,672.45 and 12,021,360.30 is: 18,041,877.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,115,838.70 : 18,183,672.45 = 12,021,360.30 : x
  2. Step 2: Convert to fraction form
    12,115,838.70/18,183,672.45 = 12,021,360.30/x
  3. Step 3: Cross multiply
    12,115,838.70x = 18,183,672.45 × 12,021,360.30
  4. Step 4: Simplify right side
    12,115,838.70x = 218,592,478,098,633.75
  5. Step 5: Solve for x
    x = 218,592,478,098,633.75/12,115,838.70
  6. Step 6: Final answer
    x = 18,041,877.54

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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.