Home / 311,269,417.92-429,559,895.52-172,042,375.68

Finding the Fourth Proportional to 311,269,417.92, 429,559,895.52 and 172,042,375.68

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Solution

The fourth proportional to 311,269,417.92, 429,559,895.52 and 172,042,375.68 is: 237,422,954.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,269,417.92 : 429,559,895.52 = 172,042,375.68 : x
  2. Step 2: Convert to fraction form
    311,269,417.92/429,559,895.52 = 172,042,375.68/x
  3. Step 3: Cross multiply
    311,269,417.92x = 429,559,895.52 × 172,042,375.68
  4. Step 4: Simplify right side
    311,269,417.92x = 73,902,504,922,113,392
  5. Step 5: Solve for x
    x = 73,902,504,922,113,392/311,269,417.92
  6. Step 6: Final answer
    x = 237,422,954.74

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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.