Home / 155,359,554.92-214,395,129.54-85,744,933.76

Finding the Fourth Proportional to 155,359,554.92, 214,395,129.54 and 85,744,933.76

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Solution

The fourth proportional to 155,359,554.92, 214,395,129.54 and 85,744,933.76 is: 118,327,425.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,359,554.92 : 214,395,129.54 = 85,744,933.76 : x
  2. Step 2: Convert to fraction form
    155,359,554.92/214,395,129.54 = 85,744,933.76/x
  3. Step 3: Cross multiply
    155,359,554.92x = 214,395,129.54 × 85,744,933.76
  4. Step 4: Simplify right side
    155,359,554.92x = 18,383,296,180,873,920
  5. Step 5: Solve for x
    x = 18,383,296,180,873,920/155,359,554.92
  6. Step 6: Final answer
    x = 118,327,425.63

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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.