Home / 121,515,853.62-167,693,452.64-66,510,529.14

Finding the Fourth Proportional to 121,515,853.62, 167,693,452.64 and 66,510,529.14

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Solution

The fourth proportional to 121,515,853.62, 167,693,452.64 and 66,510,529.14 is: 91,785,392.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,515,853.62 : 167,693,452.64 = 66,510,529.14 : x
  2. Step 2: Convert to fraction form
    121,515,853.62/167,693,452.64 = 66,510,529.14/x
  3. Step 3: Cross multiply
    121,515,853.62x = 167,693,452.64 × 66,510,529.14
  4. Step 4: Simplify right side
    121,515,853.62x = 11,153,380,268,399,930
  5. Step 5: Solve for x
    x = 11,153,380,268,399,930/121,515,853.62
  6. Step 6: Final answer
    x = 91,785,392.08

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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.