Home / 5,183,998.20-7,772,310.90-1,987,889.40

Finding the Fourth Proportional to 5,183,998.20, 7,772,310.90 and 1,987,889.40

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Solution

The fourth proportional to 5,183,998.20, 7,772,310.90 and 1,987,889.40 is: 2,980,420.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,183,998.20 : 7,772,310.90 = 1,987,889.40 : x
  2. Step 2: Convert to fraction form
    5,183,998.20/7,772,310.90 = 1,987,889.40/x
  3. Step 3: Cross multiply
    5,183,998.20x = 7,772,310.90 × 1,987,889.40
  4. Step 4: Simplify right side
    5,183,998.20x = 15,450,494,451,614.46
  5. Step 5: Solve for x
    x = 15,450,494,451,614.46/5,183,998.20
  6. Step 6: Final answer
    x = 2,980,420.49

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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.