Home / 136,676,542.77-188,613,507.16-77,150,368.43

Finding the Fourth Proportional to 136,676,542.77, 188,613,507.16 and 77,150,368.43

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Solution

The fourth proportional to 136,676,542.77, 188,613,507.16 and 77,150,368.43 is: 106,467,439.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,676,542.77 : 188,613,507.16 = 77,150,368.43 : x
  2. Step 2: Convert to fraction form
    136,676,542.77/188,613,507.16 = 77,150,368.43/x
  3. Step 3: Cross multiply
    136,676,542.77x = 188,613,507.16 × 77,150,368.43
  4. Step 4: Simplify right side
    136,676,542.77x = 14,551,601,568,268,444
  5. Step 5: Solve for x
    x = 14,551,601,568,268,444/136,676,542.77
  6. Step 6: Final answer
    x = 106,467,439.65

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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.