Home / 128,873,523.19-193,055,191.88-112,717,716.79

Finding the Fourth Proportional to 128,873,523.19, 193,055,191.88 and 112,717,716.79

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Solution

The fourth proportional to 128,873,523.19, 193,055,191.88 and 112,717,716.79 is: 168,853,461.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,873,523.19 : 193,055,191.88 = 112,717,716.79 : x
  2. Step 2: Convert to fraction form
    128,873,523.19/193,055,191.88 = 112,717,716.79/x
  3. Step 3: Cross multiply
    128,873,523.19x = 193,055,191.88 × 112,717,716.79
  4. Step 4: Simplify right side
    128,873,523.19x = 21,760,740,442,203,672
  5. Step 5: Solve for x
    x = 21,760,740,442,203,672/128,873,523.19
  6. Step 6: Final answer
    x = 168,853,461.16

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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.