Home / 238,608,109.20-329,274,029.67-138,140,783.16

Finding the Fourth Proportional to 238,608,109.20, 329,274,029.67 and 138,140,783.16

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Solution

The fourth proportional to 238,608,109.20, 329,274,029.67 and 138,140,783.16 is: 190,631,292.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,608,109.20 : 329,274,029.67 = 138,140,783.16 : x
  2. Step 2: Convert to fraction form
    238,608,109.20/329,274,029.67 = 138,140,783.16/x
  3. Step 3: Cross multiply
    238,608,109.20x = 329,274,029.67 × 138,140,783.16
  4. Step 4: Simplify right side
    238,608,109.20x = 45,486,172,332,862,880
  5. Step 5: Solve for x
    x = 45,486,172,332,862,880/238,608,109.20
  6. Step 6: Final answer
    x = 190,631,292.81

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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.