Home / 25,347,947.20-38,021,920.80-19,375,979.20

Finding the Fourth Proportional to 25,347,947.20, 38,021,920.80 and 19,375,979.20

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Solution

The fourth proportional to 25,347,947.20, 38,021,920.80 and 19,375,979.20 is: 29,063,968.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,347,947.20 : 38,021,920.80 = 19,375,979.20 : x
  2. Step 2: Convert to fraction form
    25,347,947.20/38,021,920.80 = 19,375,979.20/x
  3. Step 3: Cross multiply
    25,347,947.20x = 38,021,920.80 × 19,375,979.20
  4. Step 4: Simplify right side
    25,347,947.20x = 736,711,946,564,847.25
  5. Step 5: Solve for x
    x = 736,711,946,564,847.25/25,347,947.20
  6. Step 6: Final answer
    x = 29,063,968.80

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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.