Home / 842,770,801.51-1,163,015,139.38-466,428,119.97

Finding the Fourth Proportional to 842,770,801.51, 1,163,015,139.38 and 466,428,119.97

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Solution

The fourth proportional to 842,770,801.51, 1,163,015,139.38 and 466,428,119.97 is: 643,666,064.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,770,801.51 : 1,163,015,139.38 = 466,428,119.97 : x
  2. Step 2: Convert to fraction form
    842,770,801.51/1,163,015,139.38 = 466,428,119.97/x
  3. Step 3: Cross multiply
    842,770,801.51x = 1,163,015,139.38 × 466,428,119.97
  4. Step 4: Simplify right side
    842,770,801.51x = 542,462,964,957,660,992
  5. Step 5: Solve for x
    x = 542,462,964,957,660,992/842,770,801.51
  6. Step 6: Final answer
    x = 643,666,064.35

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Double scale
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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.