Home / 1,131,375,668.47-1,561,434,342.65-685,325,944.06

Finding the Fourth Proportional to 1,131,375,668.47, 1,561,434,342.65 and 685,325,944.06

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Solution

The fourth proportional to 1,131,375,668.47, 1,561,434,342.65 and 685,325,944.06 is: 945,832,135.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,375,668.47 : 1,561,434,342.65 = 685,325,944.06 : x
  2. Step 2: Convert to fraction form
    1,131,375,668.47/1,561,434,342.65 = 685,325,944.06/x
  3. Step 3: Cross multiply
    1,131,375,668.47x = 1,561,434,342.65 × 685,325,944.06
  4. Step 4: Simplify right side
    1,131,375,668.47x = 1,070,091,464,964,316,800
  5. Step 5: Solve for x
    x = 1,070,091,464,964,316,800/1,131,375,668.47
  6. Step 6: Final answer
    x = 945,832,135.86

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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.