Home / 1,217,957,364.41-1,680,797,287.26-661,047,087.29

Finding the Fourth Proportional to 1,217,957,364.41, 1,680,797,287.26 and 661,047,087.29

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Solution

The fourth proportional to 1,217,957,364.41, 1,680,797,287.26 and 661,047,087.29 is: 912,253,731.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,957,364.41 : 1,680,797,287.26 = 661,047,087.29 : x
  2. Step 2: Convert to fraction form
    1,217,957,364.41/1,680,797,287.26 = 661,047,087.29/x
  3. Step 3: Cross multiply
    1,217,957,364.41x = 1,680,797,287.26 × 661,047,087.29
  4. Step 4: Simplify right side
    1,217,957,364.41x = 1,111,086,151,059,752,320
  5. Step 5: Solve for x
    x = 1,111,086,151,059,752,320/1,217,957,364.41
  6. Step 6: Final answer
    x = 912,253,731.97

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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.