Home / 304,541,462.99-420,255,112.03-172,409,868.43

Finding the Fourth Proportional to 304,541,462.99, 420,255,112.03 and 172,409,868.43

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Solution

The fourth proportional to 304,541,462.99, 420,255,112.03 and 172,409,868.43 is: 237,918,764.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,541,462.99 : 420,255,112.03 = 172,409,868.43 : x
  2. Step 2: Convert to fraction form
    304,541,462.99/420,255,112.03 = 172,409,868.43/x
  3. Step 3: Cross multiply
    304,541,462.99x = 420,255,112.03 × 172,409,868.43
  4. Step 4: Simplify right side
    304,541,462.99x = 72,456,128,570,645,552
  5. Step 5: Solve for x
    x = 72,456,128,570,645,552/304,541,462.99
  6. Step 6: Final answer
    x = 237,918,764.36

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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.