Home / 7,128,480.80-10,692,721.20-2,080,301.60

Finding the Fourth Proportional to 7,128,480.80, 10,692,721.20 and 2,080,301.60

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Solution

The fourth proportional to 7,128,480.80, 10,692,721.20 and 2,080,301.60 is: 3,120,452.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,128,480.80 : 10,692,721.20 = 2,080,301.60 : x
  2. Step 2: Convert to fraction form
    7,128,480.80/10,692,721.20 = 2,080,301.60/x
  3. Step 3: Cross multiply
    7,128,480.80x = 10,692,721.20 × 2,080,301.60
  4. Step 4: Simplify right side
    7,128,480.80x = 22,244,085,020,713.92
  5. Step 5: Solve for x
    x = 22,244,085,020,713.92/7,128,480.80
  6. Step 6: Final answer
    x = 3,120,452.40

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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.