Home / 121,515,885.36-167,693,496.84-66,510,560.88

Finding the Fourth Proportional to 121,515,885.36, 167,693,496.84 and 66,510,560.88

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Solution

The fourth proportional to 121,515,885.36, 167,693,496.84 and 66,510,560.88 is: 91,785,436.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,515,885.36 : 167,693,496.84 = 66,510,560.88 : x
  2. Step 2: Convert to fraction form
    121,515,885.36/167,693,496.84 = 66,510,560.88/x
  3. Step 3: Cross multiply
    121,515,885.36x = 167,693,496.84 × 66,510,560.88
  4. Step 4: Simplify right side
    121,515,885.36x = 11,153,388,530,756,908
  5. Step 5: Solve for x
    x = 11,153,388,530,756,908/121,515,885.36
  6. Step 6: Final answer
    x = 91,785,436.10

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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.