Home / 120,433,422.30-166,197,236.31-65,429,730.78

Finding the Fourth Proportional to 120,433,422.30, 166,197,236.31 and 65,429,730.78

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Solution

The fourth proportional to 120,433,422.30, 166,197,236.31 and 65,429,730.78 is: 90,292,546.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,433,422.30 : 166,197,236.31 = 65,429,730.78 : x
  2. Step 2: Convert to fraction form
    120,433,422.30/166,197,236.31 = 65,429,730.78/x
  3. Step 3: Cross multiply
    120,433,422.30x = 166,197,236.31 × 65,429,730.78
  4. Step 4: Simplify right side
    120,433,422.30x = 10,874,240,428,143,340
  5. Step 5: Solve for x
    x = 10,874,240,428,143,340/120,433,422.30
  6. Step 6: Final answer
    x = 90,292,546.87

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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.