Home / 309,580,340.90-427,207,968.78-168,452,115.52

Finding the Fourth Proportional to 309,580,340.90, 427,207,968.78 and 168,452,115.52

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Solution

The fourth proportional to 309,580,340.90, 427,207,968.78 and 168,452,115.52 is: 232,456,899.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,580,340.90 : 427,207,968.78 = 168,452,115.52 : x
  2. Step 2: Convert to fraction form
    309,580,340.90/427,207,968.78 = 168,452,115.52/x
  3. Step 3: Cross multiply
    309,580,340.90x = 427,207,968.78 × 168,452,115.52
  4. Step 4: Simplify right side
    309,580,340.90x = 71,964,086,107,993,112
  5. Step 5: Solve for x
    x = 71,964,086,107,993,112/309,580,340.90
  6. Step 6: Final answer
    x = 232,456,899.23

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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.