Home / 218,565,205.34-327,811,893.82-78,476,665.19

Finding the Fourth Proportional to 218,565,205.34, 327,811,893.82 and 78,476,665.19

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Solution

The fourth proportional to 218,565,205.34, 327,811,893.82 and 78,476,665.19 is: 117,702,102.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,565,205.34 : 327,811,893.82 = 78,476,665.19 : x
  2. Step 2: Convert to fraction form
    218,565,205.34/327,811,893.82 = 78,476,665.19/x
  3. Step 3: Cross multiply
    218,565,205.34x = 327,811,893.82 × 78,476,665.19
  4. Step 4: Simplify right side
    218,565,205.34x = 25,725,584,234,776,720
  5. Step 5: Solve for x
    x = 25,725,584,234,776,720/218,565,205.34
  6. Step 6: Final answer
    x = 117,702,102.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.