Home / 317,638,922.58-438,269,892.92-192,187,998.34

Finding the Fourth Proportional to 317,638,922.58, 438,269,892.92 and 192,187,998.34

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Solution

The fourth proportional to 317,638,922.58, 438,269,892.92 and 192,187,998.34 is: 265,175,982.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,638,922.58 : 438,269,892.92 = 192,187,998.34 : x
  2. Step 2: Convert to fraction form
    317,638,922.58/438,269,892.92 = 192,187,998.34/x
  3. Step 3: Cross multiply
    317,638,922.58x = 438,269,892.92 × 192,187,998.34
  4. Step 4: Simplify right side
    317,638,922.58x = 84,230,213,451,646,960
  5. Step 5: Solve for x
    x = 84,230,213,451,646,960/317,638,922.58
  6. Step 6: Final answer
    x = 265,175,982.74

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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.