Home / 304,320,660.78-419,927,082.40-170,365,912.19

Finding the Fourth Proportional to 304,320,660.78, 419,927,082.40 and 170,365,912.19

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Solution

The fourth proportional to 304,320,660.78, 419,927,082.40 and 170,365,912.19 is: 235,085,124.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,320,660.78 : 419,927,082.40 = 170,365,912.19 : x
  2. Step 2: Convert to fraction form
    304,320,660.78/419,927,082.40 = 170,365,912.19/x
  3. Step 3: Cross multiply
    304,320,660.78x = 419,927,082.40 × 170,365,912.19
  4. Step 4: Simplify right side
    304,320,660.78x = 71,541,260,446,361,288
  5. Step 5: Solve for x
    x = 71,541,260,446,361,288/304,320,660.78
  6. Step 6: Final answer
    x = 235,085,124.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.