Home / 9,121,928.80-12,589,597.20-5,253,697.12

Finding the Fourth Proportional to 9,121,928.80, 12,589,597.20 and 5,253,697.12

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Solution

The fourth proportional to 9,121,928.80, 12,589,597.20 and 5,253,697.12 is: 7,250,871.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,121,928.80 : 12,589,597.20 = 5,253,697.12 : x
  2. Step 2: Convert to fraction form
    9,121,928.80/12,589,597.20 = 5,253,697.12/x
  3. Step 3: Cross multiply
    9,121,928.80x = 12,589,597.20 × 5,253,697.12
  4. Step 4: Simplify right side
    9,121,928.80x = 66,141,930,551,600.06
  5. Step 5: Solve for x
    x = 66,141,930,551,600.06/9,121,928.80
  6. Step 6: Final answer
    x = 7,250,871.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.