Home / 304,725,651.63-420,548,821.61-172,598,790.21

Finding the Fourth Proportional to 304,725,651.63, 420,548,821.61 and 172,598,790.21

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Solution

The fourth proportional to 304,725,651.63, 420,548,821.61 and 172,598,790.21 is: 238,201,862.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,725,651.63 : 420,548,821.61 = 172,598,790.21 : x
  2. Step 2: Convert to fraction form
    304,725,651.63/420,548,821.61 = 172,598,790.21/x
  3. Step 3: Cross multiply
    304,725,651.63x = 420,548,821.61 × 172,598,790.21
  4. Step 4: Simplify right side
    304,725,651.63x = 72,586,217,833,264,112
  5. Step 5: Solve for x
    x = 72,586,217,833,264,112/304,725,651.63
  6. Step 6: Final answer
    x = 238,201,862.71

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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.