Home / 303,408,997.20-455,326,072.20-194,499,021.60

Finding the Fourth Proportional to 303,408,997.20, 455,326,072.20 and 194,499,021.60

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Solution

The fourth proportional to 303,408,997.20, 455,326,072.20 and 194,499,021.60 is: 291,884,803.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,408,997.20 : 455,326,072.20 = 194,499,021.60 : x
  2. Step 2: Convert to fraction form
    303,408,997.20/455,326,072.20 = 194,499,021.60/x
  3. Step 3: Cross multiply
    303,408,997.20x = 455,326,072.20 × 194,499,021.60
  4. Step 4: Simplify right side
    303,408,997.20x = 88,560,475,551,870,960
  5. Step 5: Solve for x
    x = 88,560,475,551,870,960/303,408,997.20
  6. Step 6: Final answer
    x = 291,884,803.58

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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.