Home / 9,072,919.20-13,609,378.80-7,841,200.80

Finding the Fourth Proportional to 9,072,919.20, 13,609,378.80 and 7,841,200.80

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Solution

The fourth proportional to 9,072,919.20, 13,609,378.80 and 7,841,200.80 is: 11,761,801.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,072,919.20 : 13,609,378.80 = 7,841,200.80 : x
  2. Step 2: Convert to fraction form
    9,072,919.20/13,609,378.80 = 7,841,200.80/x
  3. Step 3: Cross multiply
    9,072,919.20x = 13,609,378.80 × 7,841,200.80
  4. Step 4: Simplify right side
    9,072,919.20x = 106,713,871,934,063.05
  5. Step 5: Solve for x
    x = 106,713,871,934,063.05/9,072,919.20
  6. Step 6: Final answer
    x = 11,761,801.20

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Double scale
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Similar ratio
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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.