Home / 72,617,997.20-108,801,024.60-47,045,843.60

Finding the Fourth Proportional to 72,617,997.20, 108,801,024.60 and 47,045,843.60

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Solution

The fourth proportional to 72,617,997.20, 108,801,024.60 and 47,045,843.60 is: 70,487,154.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,617,997.20 : 108,801,024.60 = 47,045,843.60 : x
  2. Step 2: Convert to fraction form
    72,617,997.20/108,801,024.60 = 47,045,843.60/x
  3. Step 3: Cross multiply
    72,617,997.20x = 108,801,024.60 × 47,045,843.60
  4. Step 4: Simplify right side
    72,617,997.20x = 5,118,635,986,851,352
  5. Step 5: Solve for x
    x = 5,118,635,986,851,352/72,617,997.20
  6. Step 6: Final answer
    x = 70,487,154.48

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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.