Home / 313,380,972.18-432,009,952.79-219,002,102.55

Finding the Fourth Proportional to 313,380,972.18, 432,009,952.79 and 219,002,102.55

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Solution

The fourth proportional to 313,380,972.18, 432,009,952.79 and 219,002,102.55 is: 301,904,379.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,380,972.18 : 432,009,952.79 = 219,002,102.55 : x
  2. Step 2: Convert to fraction form
    313,380,972.18/432,009,952.79 = 219,002,102.55/x
  3. Step 3: Cross multiply
    313,380,972.18x = 432,009,952.79 × 219,002,102.55
  4. Step 4: Simplify right side
    313,380,972.18x = 94,611,087,982,441,232
  5. Step 5: Solve for x
    x = 94,611,087,982,441,232/313,380,972.18
  6. Step 6: Final answer
    x = 301,904,379.59

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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.