Home / 375,719,735.28-518,475,668.34-208,454,216.38

Finding the Fourth Proportional to 375,719,735.28, 518,475,668.34 and 208,454,216.38

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Solution

The fourth proportional to 375,719,735.28, 518,475,668.34 and 208,454,216.38 is: 287,657,072.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,719,735.28 : 518,475,668.34 = 208,454,216.38 : x
  2. Step 2: Convert to fraction form
    375,719,735.28/518,475,668.34 = 208,454,216.38/x
  3. Step 3: Cross multiply
    375,719,735.28x = 518,475,668.34 × 208,454,216.38
  4. Step 4: Simplify right side
    375,719,735.28x = 108,078,439,155,396,992
  5. Step 5: Solve for x
    x = 108,078,439,155,396,992/375,719,735.28
  6. Step 6: Final answer
    x = 287,657,072.56

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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.