Home / 378,979,867.40-568,524,028.47-116,686,611.25

Finding the Fourth Proportional to 378,979,867.40, 568,524,028.47 and 116,686,611.25

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Solution

The fourth proportional to 378,979,867.40, 568,524,028.47 and 116,686,611.25 is: 175,046,613.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,979,867.40 : 568,524,028.47 = 116,686,611.25 : x
  2. Step 2: Convert to fraction form
    378,979,867.40/568,524,028.47 = 116,686,611.25/x
  3. Step 3: Cross multiply
    378,979,867.40x = 568,524,028.47 × 116,686,611.25
  4. Step 4: Simplify right side
    378,979,867.40x = 66,339,142,294,503,936
  5. Step 5: Solve for x
    x = 66,339,142,294,503,936/378,979,867.40
  6. Step 6: Final answer
    x = 175,046,613.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.