Home / 247,179,938.10-370,769,907.15-138,340,821.30

Finding the Fourth Proportional to 247,179,938.10, 370,769,907.15 and 138,340,821.30

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Solution

The fourth proportional to 247,179,938.10, 370,769,907.15 and 138,340,821.30 is: 207,511,231.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,179,938.10 : 370,769,907.15 = 138,340,821.30 : x
  2. Step 2: Convert to fraction form
    247,179,938.10/370,769,907.15 = 138,340,821.30/x
  3. Step 3: Cross multiply
    247,179,938.10x = 370,769,907.15 × 138,340,821.30
  4. Step 4: Simplify right side
    247,179,938.10x = 51,292,613,468,455,744
  5. Step 5: Solve for x
    x = 51,292,613,468,455,744/247,179,938.10
  6. Step 6: Final answer
    x = 207,511,231.95

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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.