Home / 121,983,402.38-168,337,096.17-66,979,258.88

Finding the Fourth Proportional to 121,983,402.38, 168,337,096.17 and 66,979,258.88

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Solution

The fourth proportional to 121,983,402.38, 168,337,096.17 and 66,979,258.88 is: 92,431,377.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,983,402.38 : 168,337,096.17 = 66,979,258.88 : x
  2. Step 2: Convert to fraction form
    121,983,402.38/168,337,096.17 = 66,979,258.88/x
  3. Step 3: Cross multiply
    121,983,402.38x = 168,337,096.17 × 66,979,258.88
  4. Step 4: Simplify right side
    121,983,402.38x = 11,275,093,943,477,886
  5. Step 5: Solve for x
    x = 11,275,093,943,477,886/121,983,402.38
  6. Step 6: Final answer
    x = 92,431,377.74

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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.