Home / 121,717,915.40-167,974,785.44-66,713,912.84

Finding the Fourth Proportional to 121,717,915.40, 167,974,785.44 and 66,713,912.84

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Solution

The fourth proportional to 121,717,915.40, 167,974,785.44 and 66,713,912.84 is: 92,067,426.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,717,915.40 : 167,974,785.44 = 66,713,912.84 : x
  2. Step 2: Convert to fraction form
    121,717,915.40/167,974,785.44 = 66,713,912.84/x
  3. Step 3: Cross multiply
    121,717,915.40x = 167,974,785.44 × 66,713,912.84
  4. Step 4: Simplify right side
    121,717,915.40x = 11,206,255,193,988,418
  5. Step 5: Solve for x
    x = 11,206,255,193,988,418/121,717,915.40
  6. Step 6: Final answer
    x = 92,067,426.21

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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.