Home / 48,387,212.80-72,580,819.20-12,485,420.80

Finding the Fourth Proportional to 48,387,212.80, 72,580,819.20 and 12,485,420.80

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Solution

The fourth proportional to 48,387,212.80, 72,580,819.20 and 12,485,420.80 is: 18,728,131.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,387,212.80 : 72,580,819.20 = 12,485,420.80 : x
  2. Step 2: Convert to fraction form
    48,387,212.80/72,580,819.20 = 12,485,420.80/x
  3. Step 3: Cross multiply
    48,387,212.80x = 72,580,819.20 × 12,485,420.80
  4. Step 4: Simplify right side
    48,387,212.80x = 906,202,069,720,719.50
  5. Step 5: Solve for x
    x = 906,202,069,720,719.50/48,387,212.80
  6. Step 6: Final answer
    x = 18,728,131.20

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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.