Home / 279,936,811.40-419,905,217.10-98,183,989.40

Finding the Fourth Proportional to 279,936,811.40, 419,905,217.10 and 98,183,989.40

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Solution

The fourth proportional to 279,936,811.40, 419,905,217.10 and 98,183,989.40 is: 147,275,984.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,936,811.40 : 419,905,217.10 = 98,183,989.40 : x
  2. Step 2: Convert to fraction form
    279,936,811.40/419,905,217.10 = 98,183,989.40/x
  3. Step 3: Cross multiply
    279,936,811.40x = 419,905,217.10 × 98,183,989.40
  4. Step 4: Simplify right side
    279,936,811.40x = 41,227,969,384,751,104
  5. Step 5: Solve for x
    x = 41,227,969,384,751,104/279,936,811.40
  6. Step 6: Final answer
    x = 147,275,984.10

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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.