Home / 109,654,331.20-164,481,496.80-85,261,189.30

Finding the Fourth Proportional to 109,654,331.20, 164,481,496.80 and 85,261,189.30

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Solution

The fourth proportional to 109,654,331.20, 164,481,496.80 and 85,261,189.30 is: 127,891,783.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,654,331.20 : 164,481,496.80 = 85,261,189.30 : x
  2. Step 2: Convert to fraction form
    109,654,331.20/164,481,496.80 = 85,261,189.30/x
  3. Step 3: Cross multiply
    109,654,331.20x = 164,481,496.80 × 85,261,189.30
  4. Step 4: Simplify right side
    109,654,331.20x = 14,023,888,035,012,144
  5. Step 5: Solve for x
    x = 14,023,888,035,012,144/109,654,331.20
  6. Step 6: Final answer
    x = 127,891,783.95

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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.