Home / 8,422,816.92-11,612,955.02-7,029,382.79

Finding the Fourth Proportional to 8,422,816.92, 11,612,955.02 and 7,029,382.79

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Solution

The fourth proportional to 8,422,816.92, 11,612,955.02 and 7,029,382.79 is: 9,691,758.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,422,816.92 : 11,612,955.02 = 7,029,382.79 : x
  2. Step 2: Convert to fraction form
    8,422,816.92/11,612,955.02 = 7,029,382.79/x
  3. Step 3: Cross multiply
    8,422,816.92x = 11,612,955.02 × 7,029,382.79
  4. Step 4: Simplify right side
    8,422,816.92x = 81,631,906,065,420.42
  5. Step 5: Solve for x
    x = 81,631,906,065,420.42/8,422,816.92
  6. Step 6: Final answer
    x = 9,691,758.33

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.