Home / 916,645,198.56-1,375,066,194.25-392,068,781.16

Finding the Fourth Proportional to 916,645,198.56, 1,375,066,194.25 and 392,068,781.16

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Solution

The fourth proportional to 916,645,198.56, 1,375,066,194.25 and 392,068,781.16 is: 588,145,257.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,645,198.56 : 1,375,066,194.25 = 392,068,781.16 : x
  2. Step 2: Convert to fraction form
    916,645,198.56/1,375,066,194.25 = 392,068,781.16/x
  3. Step 3: Cross multiply
    916,645,198.56x = 1,375,066,194.25 × 392,068,781.16
  4. Step 4: Simplify right side
    916,645,198.56x = 539,120,526,793,917,312
  5. Step 5: Solve for x
    x = 539,120,526,793,917,312/916,645,198.56
  6. Step 6: Final answer
    x = 588,145,257.99

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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.