Home / 20,617,987.38-28,452,888.90-11,450,630.04

Finding the Fourth Proportional to 20,617,987.38, 28,452,888.90 and 11,450,630.04

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Solution

The fourth proportional to 20,617,987.38, 28,452,888.90 and 11,450,630.04 is: 15,801,906.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,617,987.38 : 28,452,888.90 = 11,450,630.04 : x
  2. Step 2: Convert to fraction form
    20,617,987.38/28,452,888.90 = 11,450,630.04/x
  3. Step 3: Cross multiply
    20,617,987.38x = 28,452,888.90 × 11,450,630.04
  4. Step 4: Simplify right side
    20,617,987.38x = 325,803,504,363,122.50
  5. Step 5: Solve for x
    x = 325,803,504,363,122.50/20,617,987.38
  6. Step 6: Final answer
    x = 15,801,906.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.