Home / 18,722,830.80-28,084,246.20-15,321,608.40

Finding the Fourth Proportional to 18,722,830.80, 28,084,246.20 and 15,321,608.40

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Solution

The fourth proportional to 18,722,830.80, 28,084,246.20 and 15,321,608.40 is: 22,982,412.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,722,830.80 : 28,084,246.20 = 15,321,608.40 : x
  2. Step 2: Convert to fraction form
    18,722,830.80/28,084,246.20 = 15,321,608.40/x
  3. Step 3: Cross multiply
    18,722,830.80x = 28,084,246.20 × 15,321,608.40
  4. Step 4: Simplify right side
    18,722,830.80x = 430,295,822,485,588.06
  5. Step 5: Solve for x
    x = 430,295,822,485,588.06/18,722,830.80
  6. Step 6: Final answer
    x = 22,982,412.60

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1.5x scale

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.