Home / 1,315,198,326.28-1,814,975,878.26-720,469,844.68

Finding the Fourth Proportional to 1,315,198,326.28, 1,814,975,878.26 and 720,469,844.68

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Solution

The fourth proportional to 1,315,198,326.28, 1,814,975,878.26 and 720,469,844.68 is: 994,249,584.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,198,326.28 : 1,814,975,878.26 = 720,469,844.68 : x
  2. Step 2: Convert to fraction form
    1,315,198,326.28/1,814,975,878.26 = 720,469,844.68/x
  3. Step 3: Cross multiply
    1,315,198,326.28x = 1,814,975,878.26 × 720,469,844.68
  4. Step 4: Simplify right side
    1,315,198,326.28x = 1,307,635,389,107,928,576
  5. Step 5: Solve for x
    x = 1,307,635,389,107,928,576/1,315,198,326.28
  6. Step 6: Final answer
    x = 994,249,584.25

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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.