Home / 165,639,110.39-248,431,715.25-78,200,458.36

Finding the Fourth Proportional to 165,639,110.39, 248,431,715.25 and 78,200,458.36

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Solution

The fourth proportional to 165,639,110.39, 248,431,715.25 and 78,200,458.36 is: 117,287,963.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,639,110.39 : 248,431,715.25 = 78,200,458.36 : x
  2. Step 2: Convert to fraction form
    165,639,110.39/248,431,715.25 = 78,200,458.36/x
  3. Step 3: Cross multiply
    165,639,110.39x = 248,431,715.25 × 78,200,458.36
  4. Step 4: Simplify right side
    165,639,110.39x = 19,427,474,002,796,672
  5. Step 5: Solve for x
    x = 19,427,474,002,796,672/165,639,110.39
  6. Step 6: Final answer
    x = 117,287,963.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.