Home / 1,668,591,928.38-2,301,609,466.04-989,928,396.84

Finding the Fourth Proportional to 1,668,591,928.38, 2,301,609,466.04 and 989,928,396.84

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Solution

The fourth proportional to 1,668,591,928.38, 2,301,609,466.04 and 989,928,396.84 is: 1,365,479,797.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,668,591,928.38 : 2,301,609,466.04 = 989,928,396.84 : x
  2. Step 2: Convert to fraction form
    1,668,591,928.38/2,301,609,466.04 = 989,928,396.84/x
  3. Step 3: Cross multiply
    1,668,591,928.38x = 2,301,609,466.04 × 989,928,396.84
  4. Step 4: Simplify right side
    1,668,591,928.38x = 2,278,428,568,868,745,728
  5. Step 5: Solve for x
    x = 2,278,428,568,868,745,728/1,668,591,928.38
  6. Step 6: Final answer
    x = 1,365,479,797.74

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Double scale
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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.