Home / 279,618,919.49-419,306,812.94-80,154,274.19

Finding the Fourth Proportional to 279,618,919.49, 419,306,812.94 and 80,154,274.19

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Solution

The fourth proportional to 279,618,919.49, 419,306,812.94 and 80,154,274.19 is: 120,196,563.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,618,919.49 : 419,306,812.94 = 80,154,274.19 : x
  2. Step 2: Convert to fraction form
    279,618,919.49/419,306,812.94 = 80,154,274.19/x
  3. Step 3: Cross multiply
    279,618,919.49x = 419,306,812.94 × 80,154,274.19
  4. Step 4: Simplify right side
    279,618,919.49x = 33,609,233,252,231,652
  5. Step 5: Solve for x
    x = 33,609,233,252,231,652/279,618,919.49
  6. Step 6: Final answer
    x = 120,196,563.64

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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.