Home / 80,880,140.60-121,320,210.90-80,376,255.80

Finding the Fourth Proportional to 80,880,140.60, 121,320,210.90 and 80,376,255.80

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Solution

The fourth proportional to 80,880,140.60, 121,320,210.90 and 80,376,255.80 is: 120,564,383.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,880,140.60 : 121,320,210.90 = 80,376,255.80 : x
  2. Step 2: Convert to fraction form
    80,880,140.60/121,320,210.90 = 80,376,255.80/x
  3. Step 3: Cross multiply
    80,880,140.60x = 121,320,210.90 × 80,376,255.80
  4. Step 4: Simplify right side
    80,880,140.60x = 9,751,264,305,008,348
  5. Step 5: Solve for x
    x = 9,751,264,305,008,348/80,880,140.60
  6. Step 6: Final answer
    x = 120,564,383.70

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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.