Home / 40,564,664.33-55,979,431.70-21,979,799.55

Finding the Fourth Proportional to 40,564,664.33, 55,979,431.70 and 21,979,799.55

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Solution

The fourth proportional to 40,564,664.33, 55,979,431.70 and 21,979,799.55 is: 30,332,229.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,564,664.33 : 55,979,431.70 = 21,979,799.55 : x
  2. Step 2: Convert to fraction form
    40,564,664.33/55,979,431.70 = 21,979,799.55/x
  3. Step 3: Cross multiply
    40,564,664.33x = 55,979,431.70 × 21,979,799.55
  4. Step 4: Simplify right side
    40,564,664.33x = 1,230,416,687,579,016.75
  5. Step 5: Solve for x
    x = 1,230,416,687,579,016.75/40,564,664.33
  6. Step 6: Final answer
    x = 30,332,229.00

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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.