Home / 8,747,999.20-13,121,998.80-7,866,200.80

Finding the Fourth Proportional to 8,747,999.20, 13,121,998.80 and 7,866,200.80

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Solution

The fourth proportional to 8,747,999.20, 13,121,998.80 and 7,866,200.80 is: 11,799,301.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,747,999.20 : 13,121,998.80 = 7,866,200.80 : x
  2. Step 2: Convert to fraction form
    8,747,999.20/13,121,998.80 = 7,866,200.80/x
  3. Step 3: Cross multiply
    8,747,999.20x = 13,121,998.80 × 7,866,200.80
  4. Step 4: Simplify right side
    8,747,999.20x = 103,220,277,458,159.05
  5. Step 5: Solve for x
    x = 103,220,277,458,159.05/8,747,999.20
  6. Step 6: Final answer
    x = 11,799,301.20

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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.