Home / 136,322,097.22-188,138,107.65-81,317,953.72

Finding the Fourth Proportional to 136,322,097.22, 188,138,107.65 and 81,317,953.72

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Solution

The fourth proportional to 136,322,097.22, 188,138,107.65 and 81,317,953.72 is: 112,226,896.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,322,097.22 : 188,138,107.65 = 81,317,953.72 : x
  2. Step 2: Convert to fraction form
    136,322,097.22/188,138,107.65 = 81,317,953.72/x
  3. Step 3: Cross multiply
    136,322,097.22x = 188,138,107.65 × 81,317,953.72
  4. Step 4: Simplify right side
    136,322,097.22x = 15,299,005,930,851,078
  5. Step 5: Solve for x
    x = 15,299,005,930,851,078/136,322,097.22
  6. Step 6: Final answer
    x = 112,226,896.76

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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.