Home / 19,486,871.20-29,217,865.20-8,131,837.60

Finding the Fourth Proportional to 19,486,871.20, 29,217,865.20 and 8,131,837.60

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Solution

The fourth proportional to 19,486,871.20, 29,217,865.20 and 8,131,837.60 is: 12,192,564.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,486,871.20 : 29,217,865.20 = 8,131,837.60 : x
  2. Step 2: Convert to fraction form
    19,486,871.20/29,217,865.20 = 8,131,837.60/x
  3. Step 3: Cross multiply
    19,486,871.20x = 29,217,865.20 × 8,131,837.60
  4. Step 4: Simplify right side
    19,486,871.20x = 237,594,934,825,091.50
  5. Step 5: Solve for x
    x = 237,594,934,825,091.50/19,486,871.20
  6. Step 6: Final answer
    x = 12,192,564.54

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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.