Home / 20,736,081.20-31,104,121.80-15,585,258.80

Finding the Fourth Proportional to 20,736,081.20, 31,104,121.80 and 15,585,258.80

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Solution

The fourth proportional to 20,736,081.20, 31,104,121.80 and 15,585,258.80 is: 23,377,888.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736,081.20 : 31,104,121.80 = 15,585,258.80 : x
  2. Step 2: Convert to fraction form
    20,736,081.20/31,104,121.80 = 15,585,258.80/x
  3. Step 3: Cross multiply
    20,736,081.20x = 31,104,121.80 × 15,585,258.80
  4. Step 4: Simplify right side
    20,736,081.20x = 484,765,787,999,721.88
  5. Step 5: Solve for x
    x = 484,765,787,999,721.88/20,736,081.20
  6. Step 6: Final answer
    x = 23,377,888.20

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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.