Home / 279,986,911.08-420,000,544.89-107,463,724.57

Finding the Fourth Proportional to 279,986,911.08, 420,000,544.89 and 107,463,724.57

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Solution

The fourth proportional to 279,986,911.08, 420,000,544.89 and 107,463,724.57 is: 161,203,331.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,986,911.08 : 420,000,544.89 = 107,463,724.57 : x
  2. Step 2: Convert to fraction form
    279,986,911.08/420,000,544.89 = 107,463,724.57/x
  3. Step 3: Cross multiply
    279,986,911.08x = 420,000,544.89 × 107,463,724.57
  4. Step 4: Simplify right side
    279,986,911.08x = 45,134,822,876,711,032
  5. Step 5: Solve for x
    x = 45,134,822,876,711,032/279,986,911.08
  6. Step 6: Final answer
    x = 161,203,331.62

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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.