Home / 238,608,108.20-329,274,028.29-138,140,782.16

Finding the Fourth Proportional to 238,608,108.20, 329,274,028.29 and 138,140,782.16

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Solution

The fourth proportional to 238,608,108.20, 329,274,028.29 and 138,140,782.16 is: 190,631,291.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,608,108.20 : 329,274,028.29 = 138,140,782.16 : x
  2. Step 2: Convert to fraction form
    238,608,108.20/329,274,028.29 = 138,140,782.16/x
  3. Step 3: Cross multiply
    238,608,108.20x = 329,274,028.29 × 138,140,782.16
  4. Step 4: Simplify right side
    238,608,108.20x = 45,486,171,813,440,768
  5. Step 5: Solve for x
    x = 45,486,171,813,440,768/238,608,108.20
  6. Step 6: Final answer
    x = 190,631,291.44

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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.