Home / 81,465,862.60-122,198,793.90-47,028,485.80

Finding the Fourth Proportional to 81,465,862.60, 122,198,793.90 and 47,028,485.80

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Solution

The fourth proportional to 81,465,862.60, 122,198,793.90 and 47,028,485.80 is: 70,542,728.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,465,862.60 : 122,198,793.90 = 47,028,485.80 : x
  2. Step 2: Convert to fraction form
    81,465,862.60/122,198,793.90 = 47,028,485.80/x
  3. Step 3: Cross multiply
    81,465,862.60x = 122,198,793.90 × 47,028,485.80
  4. Step 4: Simplify right side
    81,465,862.60x = 5,746,824,243,703,277
  5. Step 5: Solve for x
    x = 5,746,824,243,703,277/81,465,862.60
  6. Step 6: Final answer
    x = 70,542,728.70

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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.