Home / 109,654,330.70-164,481,496.05-85,261,188.80

Finding the Fourth Proportional to 109,654,330.70, 164,481,496.05 and 85,261,188.80

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Solution

The fourth proportional to 109,654,330.70, 164,481,496.05 and 85,261,188.80 is: 127,891,783.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,654,330.70 : 164,481,496.05 = 85,261,188.80 : x
  2. Step 2: Convert to fraction form
    109,654,330.70/164,481,496.05 = 85,261,188.80/x
  3. Step 3: Cross multiply
    109,654,330.70x = 164,481,496.05 × 85,261,188.80
  4. Step 4: Simplify right side
    109,654,330.70x = 14,023,887,888,825,504
  5. Step 5: Solve for x
    x = 14,023,887,888,825,504/109,654,330.70
  6. Step 6: Final answer
    x = 127,891,783.20

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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.