Home / 48,385,989.60-72,495,003.60-45,362,680.80

Finding the Fourth Proportional to 48,385,989.60, 72,495,003.60 and 45,362,680.80

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Solution

The fourth proportional to 48,385,989.60, 72,495,003.60 and 45,362,680.80 is: 67,965,287.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,385,989.60 : 72,495,003.60 = 45,362,680.80 : x
  2. Step 2: Convert to fraction form
    48,385,989.60/72,495,003.60 = 45,362,680.80/x
  3. Step 3: Cross multiply
    48,385,989.60x = 72,495,003.60 × 45,362,680.80
  4. Step 4: Simplify right side
    48,385,989.60x = 3,288,567,707,901,650.50
  5. Step 5: Solve for x
    x = 3,288,567,707,901,650.50/48,385,989.60
  6. Step 6: Final answer
    x = 67,965,287.78

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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.