Home / 18,722,415.20-28,083,622.80-10,632,264.80

Finding the Fourth Proportional to 18,722,415.20, 28,083,622.80 and 10,632,264.80

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Solution

The fourth proportional to 18,722,415.20, 28,083,622.80 and 10,632,264.80 is: 15,948,397.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,722,415.20 : 28,083,622.80 = 10,632,264.80 : x
  2. Step 2: Convert to fraction form
    18,722,415.20/28,083,622.80 = 10,632,264.80/x
  3. Step 3: Cross multiply
    18,722,415.20x = 28,083,622.80 × 10,632,264.80
  4. Step 4: Simplify right side
    18,722,415.20x = 298,592,514,152,917.50
  5. Step 5: Solve for x
    x = 298,592,514,152,917.50/18,722,415.20
  6. Step 6: Final answer
    x = 15,948,397.20

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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.