Home / 72,504,003.60-108,756,005.40-40,255,376.40

Finding the Fourth Proportional to 72,504,003.60, 108,756,005.40 and 40,255,376.40

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Solution

The fourth proportional to 72,504,003.60, 108,756,005.40 and 40,255,376.40 is: 60,383,064.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,504,003.60 : 108,756,005.40 = 40,255,376.40 : x
  2. Step 2: Convert to fraction form
    72,504,003.60/108,756,005.40 = 40,255,376.40/x
  3. Step 3: Cross multiply
    72,504,003.60x = 108,756,005.40 × 40,255,376.40
  4. Step 4: Simplify right side
    72,504,003.60x = 4,378,013,933,137,432.50
  5. Step 5: Solve for x
    x = 4,378,013,933,137,432.50/72,504,003.60
  6. Step 6: Final answer
    x = 60,383,064.60

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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.