Home / 8,105,614.20-12,128,896.80-5,979,850.20

Finding the Fourth Proportional to 8,105,614.20, 12,128,896.80 and 5,979,850.20

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Solution

The fourth proportional to 8,105,614.20, 12,128,896.80 and 5,979,850.20 is: 8,947,993.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,105,614.20 : 12,128,896.80 = 5,979,850.20 : x
  2. Step 2: Convert to fraction form
    8,105,614.20/12,128,896.80 = 5,979,850.20/x
  3. Step 3: Cross multiply
    8,105,614.20x = 12,128,896.80 × 5,979,850.20
  4. Step 4: Simplify right side
    8,105,614.20x = 72,528,985,955,259.36
  5. Step 5: Solve for x
    x = 72,528,985,955,259.36/8,105,614.20
  6. Step 6: Final answer
    x = 8,947,993.84

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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.