Home / 18,886,670.70-28,330,006.05-12,084,225.90

Finding the Fourth Proportional to 18,886,670.70, 28,330,006.05 and 12,084,225.90

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Solution

The fourth proportional to 18,886,670.70, 28,330,006.05 and 12,084,225.90 is: 18,126,338.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,886,670.70 : 28,330,006.05 = 12,084,225.90 : x
  2. Step 2: Convert to fraction form
    18,886,670.70/28,330,006.05 = 12,084,225.90/x
  3. Step 3: Cross multiply
    18,886,670.70x = 28,330,006.05 × 12,084,225.90
  4. Step 4: Simplify right side
    18,886,670.70x = 342,346,192,856,566.69
  5. Step 5: Solve for x
    x = 342,346,192,856,566.69/18,886,670.70
  6. Step 6: Final answer
    x = 18,126,338.85

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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.