Home / 80,861,610.20-121,209,746.70-39,857,984.60

Finding the Fourth Proportional to 80,861,610.20, 121,209,746.70 and 39,857,984.60

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Solution

The fourth proportional to 80,861,610.20, 121,209,746.70 and 39,857,984.60 is: 59,746,228.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,861,610.20 : 121,209,746.70 = 39,857,984.60 : x
  2. Step 2: Convert to fraction form
    80,861,610.20/121,209,746.70 = 39,857,984.60/x
  3. Step 3: Cross multiply
    80,861,610.20x = 121,209,746.70 × 39,857,984.60
  4. Step 4: Simplify right side
    80,861,610.20x = 4,831,176,217,338,501
  5. Step 5: Solve for x
    x = 4,831,176,217,338,501/80,861,610.20
  6. Step 6: Final answer
    x = 59,746,228.22

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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.