Home / 80,820,003.40-121,230,005.10-48,508,390.60

Finding the Fourth Proportional to 80,820,003.40, 121,230,005.10 and 48,508,390.60

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Solution

The fourth proportional to 80,820,003.40, 121,230,005.10 and 48,508,390.60 is: 72,762,585.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,820,003.40 : 121,230,005.10 = 48,508,390.60 : x
  2. Step 2: Convert to fraction form
    80,820,003.40/121,230,005.10 = 48,508,390.60/x
  3. Step 3: Cross multiply
    80,820,003.40x = 121,230,005.10 × 48,508,390.60
  4. Step 4: Simplify right side
    80,820,003.40x = 5,880,672,439,830,792
  5. Step 5: Solve for x
    x = 5,880,672,439,830,792/80,820,003.40
  6. Step 6: Final answer
    x = 72,762,585.90

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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.