Home / 209,954,098.80-314,836,669.80-80,518,690.80

Finding the Fourth Proportional to 209,954,098.80, 314,836,669.80 and 80,518,690.80

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Solution

The fourth proportional to 209,954,098.80, 314,836,669.80 and 80,518,690.80 is: 120,741,803.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,954,098.80 : 314,836,669.80 = 80,518,690.80 : x
  2. Step 2: Convert to fraction form
    209,954,098.80/314,836,669.80 = 80,518,690.80/x
  3. Step 3: Cross multiply
    209,954,098.80x = 314,836,669.80 × 80,518,690.80
  4. Step 4: Simplify right side
    209,954,098.80x = 25,350,236,468,127,896
  5. Step 5: Solve for x
    x = 25,350,236,468,127,896/209,954,098.80
  6. Step 6: Final answer
    x = 120,741,803.15

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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.