Home / 18,722,113.20-28,083,169.80-10,219,057.20

Finding the Fourth Proportional to 18,722,113.20, 28,083,169.80 and 10,219,057.20

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Solution

The fourth proportional to 18,722,113.20, 28,083,169.80 and 10,219,057.20 is: 15,328,585.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,722,113.20 : 28,083,169.80 = 10,219,057.20 : x
  2. Step 2: Convert to fraction form
    18,722,113.20/28,083,169.80 = 10,219,057.20/x
  3. Step 3: Cross multiply
    18,722,113.20x = 28,083,169.80 × 10,219,057.20
  4. Step 4: Simplify right side
    18,722,113.20x = 286,983,518,543,512.56
  5. Step 5: Solve for x
    x = 286,983,518,543,512.56/18,722,113.20
  6. Step 6: Final answer
    x = 15,328,585.80

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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.