Home / 290,376,193.34-400,719,204.45-158,217,189.86

Finding the Fourth Proportional to 290,376,193.34, 400,719,204.45 and 158,217,189.86

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Solution

The fourth proportional to 290,376,193.34, 400,719,204.45 and 158,217,189.86 is: 218,339,753.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,376,193.34 : 400,719,204.45 = 158,217,189.86 : x
  2. Step 2: Convert to fraction form
    290,376,193.34/400,719,204.45 = 158,217,189.86/x
  3. Step 3: Cross multiply
    290,376,193.34x = 400,719,204.45 × 158,217,189.86
  4. Step 4: Simplify right side
    290,376,193.34x = 63,400,666,449,010,208
  5. Step 5: Solve for x
    x = 63,400,666,449,010,208/290,376,193.34
  6. Step 6: Final answer
    x = 218,339,753.41

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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.