Home / 117,042,324.64-161,518,422-64,834,741.78

Finding the Fourth Proportional to 117,042,324.64, 161,518,422 and 64,834,741.78

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Solution

The fourth proportional to 117,042,324.64, 161,518,422 and 64,834,741.78 is: 89,471,951.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,042,324.64 : 161,518,422 = 64,834,741.78 : x
  2. Step 2: Convert to fraction form
    117,042,324.64/161,518,422 = 64,834,741.78/x
  3. Step 3: Cross multiply
    117,042,324.64x = 161,518,422 × 64,834,741.78
  4. Step 4: Simplify right side
    117,042,324.64x = 10,472,005,183,083,072
  5. Step 5: Solve for x
    x = 10,472,005,183,083,072/117,042,324.64
  6. Step 6: Final answer
    x = 89,471,951.41

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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.