Home / 309,385,991.20-464,072,245.24-145,532,926.68

Finding the Fourth Proportional to 309,385,991.20, 464,072,245.24 and 145,532,926.68

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Solution

The fourth proportional to 309,385,991.20, 464,072,245.24 and 145,532,926.68 is: 218,296,218.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,385,991.20 : 464,072,245.24 = 145,532,926.68 : x
  2. Step 2: Convert to fraction form
    309,385,991.20/464,072,245.24 = 145,532,926.68/x
  3. Step 3: Cross multiply
    309,385,991.20x = 464,072,245.24 × 145,532,926.68
  4. Step 4: Simplify right side
    309,385,991.20x = 67,537,792,040,735,904
  5. Step 5: Solve for x
    x = 67,537,792,040,735,904/309,385,991.20
  6. Step 6: Final answer
    x = 218,296,218.84

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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.