Home / 18,722,231.20-28,085,971.20-7,360,037.20

Finding the Fourth Proportional to 18,722,231.20, 28,085,971.20 and 7,360,037.20

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Solution

The fourth proportional to 18,722,231.20, 28,085,971.20 and 7,360,037.20 is: 11,041,087.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,722,231.20 : 28,085,971.20 = 7,360,037.20 : x
  2. Step 2: Convert to fraction form
    18,722,231.20/28,085,971.20 = 7,360,037.20/x
  3. Step 3: Cross multiply
    18,722,231.20x = 28,085,971.20 × 7,360,037.20
  4. Step 4: Simplify right side
    18,722,231.20x = 206,713,792,830,128.62
  5. Step 5: Solve for x
    x = 206,713,792,830,128.62/18,722,231.20
  6. Step 6: Final answer
    x = 11,041,087.50

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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.