Home / 121,728,921.66-167,887,961.37-107,013,123.54

Finding the Fourth Proportional to 121,728,921.66, 167,887,961.37 and 107,013,123.54

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Solution

The fourth proportional to 121,728,921.66, 167,887,961.37 and 107,013,123.54 is: 147,592,001.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,728,921.66 : 167,887,961.37 = 107,013,123.54 : x
  2. Step 2: Convert to fraction form
    121,728,921.66/167,887,961.37 = 107,013,123.54/x
  3. Step 3: Cross multiply
    121,728,921.66x = 167,887,961.37 × 107,013,123.54
  4. Step 4: Simplify right side
    121,728,921.66x = 17,966,215,150,966,560
  5. Step 5: Solve for x
    x = 17,966,215,150,966,560/121,728,921.66
  6. Step 6: Final answer
    x = 147,592,001.19

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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.