Home / 305,760,896.68-421,924,118.22-171,788,323.96

Finding the Fourth Proportional to 305,760,896.68, 421,924,118.22 and 171,788,323.96

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Solution

The fourth proportional to 305,760,896.68, 421,924,118.22 and 171,788,323.96 is: 237,053,324.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,760,896.68 : 421,924,118.22 = 171,788,323.96 : x
  2. Step 2: Convert to fraction form
    305,760,896.68/421,924,118.22 = 171,788,323.96/x
  3. Step 3: Cross multiply
    305,760,896.68x = 421,924,118.22 × 171,788,323.96
  4. Step 4: Simplify right side
    305,760,896.68x = 72,481,637,107,314,704
  5. Step 5: Solve for x
    x = 72,481,637,107,314,704/305,760,896.68
  6. Step 6: Final answer
    x = 237,053,324.65

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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.