Home / 304,519,474.20-420,225,999.31-172,357,632.92

Finding the Fourth Proportional to 304,519,474.20, 420,225,999.31 and 172,357,632.92

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Solution

The fourth proportional to 304,519,474.20, 420,225,999.31 and 172,357,632.92 is: 237,847,378.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,519,474.20 : 420,225,999.31 = 172,357,632.92 : x
  2. Step 2: Convert to fraction form
    304,519,474.20/420,225,999.31 = 172,357,632.92/x
  3. Step 3: Cross multiply
    304,519,474.20x = 420,225,999.31 × 172,357,632.92
  4. Step 4: Simplify right side
    304,519,474.20x = 72,429,158,530,448,848
  5. Step 5: Solve for x
    x = 72,429,158,530,448,848/304,519,474.20
  6. Step 6: Final answer
    x = 237,847,378.14

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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.