Home / 1,294,014,919.82-1,785,820,615.41-713,988,229.88

Finding the Fourth Proportional to 1,294,014,919.82, 1,785,820,615.41 and 713,988,229.88

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Solution

The fourth proportional to 1,294,014,919.82, 1,785,820,615.41 and 713,988,229.88 is: 985,347,912.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,014,919.82 : 1,785,820,615.41 = 713,988,229.88 : x
  2. Step 2: Convert to fraction form
    1,294,014,919.82/1,785,820,615.41 = 713,988,229.88/x
  3. Step 3: Cross multiply
    1,294,014,919.82x = 1,785,820,615.41 × 713,988,229.88
  4. Step 4: Simplify right side
    1,294,014,919.82x = 1,275,054,900,079,798,272
  5. Step 5: Solve for x
    x = 1,275,054,900,079,798,272/1,294,014,919.82
  6. Step 6: Final answer
    x = 985,347,912.57

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Half scale
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Double scale
Find fourth proportional to 1,294,014,920.82, 1,785,820,616.79 and 713,988,230.88
Similar ratio
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1.5x scale

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.