Home / 80,821,472.40-121,232,208.60-48,509,859.60

Finding the Fourth Proportional to 80,821,472.40, 121,232,208.60 and 48,509,859.60

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Solution

The fourth proportional to 80,821,472.40, 121,232,208.60 and 48,509,859.60 is: 72,764,789.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,821,472.40 : 121,232,208.60 = 48,509,859.60 : x
  2. Step 2: Convert to fraction form
    80,821,472.40/121,232,208.60 = 48,509,859.60/x
  3. Step 3: Cross multiply
    80,821,472.40x = 121,232,208.60 × 48,509,859.60
  4. Step 4: Simplify right side
    80,821,472.40x = 5,880,957,418,183,912
  5. Step 5: Solve for x
    x = 5,880,957,418,183,912/80,821,472.40
  6. Step 6: Final answer
    x = 72,764,789.40

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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.