Home / 80,695,440.60-121,043,160.90-71,121,629.40

Finding the Fourth Proportional to 80,695,440.60, 121,043,160.90 and 71,121,629.40

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Solution

The fourth proportional to 80,695,440.60, 121,043,160.90 and 71,121,629.40 is: 106,682,444.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,695,440.60 : 121,043,160.90 = 71,121,629.40 : x
  2. Step 2: Convert to fraction form
    80,695,440.60/121,043,160.90 = 71,121,629.40/x
  3. Step 3: Cross multiply
    80,695,440.60x = 121,043,160.90 × 71,121,629.40
  4. Step 4: Simplify right side
    80,695,440.60x = 8,608,786,830,934,372
  5. Step 5: Solve for x
    x = 8,608,786,830,934,372/80,695,440.60
  6. Step 6: Final answer
    x = 106,682,444.10

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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.