Home / 120,892,771.68-166,835,929.92-68,680,858.56

Finding the Fourth Proportional to 120,892,771.68, 166,835,929.92 and 68,680,858.56

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Solution

The fourth proportional to 120,892,771.68, 166,835,929.92 and 68,680,858.56 is: 94,781,803.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,892,771.68 : 166,835,929.92 = 68,680,858.56 : x
  2. Step 2: Convert to fraction form
    120,892,771.68/166,835,929.92 = 68,680,858.56/x
  3. Step 3: Cross multiply
    120,892,771.68x = 166,835,929.92 × 68,680,858.56
  4. Step 4: Simplify right side
    120,892,771.68x = 11,458,434,905,561,592
  5. Step 5: Solve for x
    x = 11,458,434,905,561,592/120,892,771.68
  6. Step 6: Final answer
    x = 94,781,803.30

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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.