Home / 231,995,110.40-347,981,606.40-78,626,124.80

Finding the Fourth Proportional to 231,995,110.40, 347,981,606.40 and 78,626,124.80

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Solution

The fourth proportional to 231,995,110.40, 347,981,606.40 and 78,626,124.80 is: 117,935,439.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,995,110.40 : 347,981,606.40 = 78,626,124.80 : x
  2. Step 2: Convert to fraction form
    231,995,110.40/347,981,606.40 = 78,626,124.80/x
  3. Step 3: Cross multiply
    231,995,110.40x = 347,981,606.40 × 78,626,124.80
  4. Step 4: Simplify right side
    231,995,110.40x = 27,360,445,212,910,876
  5. Step 5: Solve for x
    x = 27,360,445,212,910,876/231,995,110.40
  6. Step 6: Final answer
    x = 117,935,439.09

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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.