Home / 221,167,215.90-331,327,809.45-118,897,263.90

Finding the Fourth Proportional to 221,167,215.90, 331,327,809.45 and 118,897,263.90

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Solution

The fourth proportional to 221,167,215.90, 331,327,809.45 and 118,897,263.90 is: 178,118,487.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,167,215.90 : 331,327,809.45 = 118,897,263.90 : x
  2. Step 2: Convert to fraction form
    221,167,215.90/331,327,809.45 = 118,897,263.90/x
  3. Step 3: Cross multiply
    221,167,215.90x = 331,327,809.45 × 118,897,263.90
  4. Step 4: Simplify right side
    221,167,215.90x = 39,393,969,997,585,568
  5. Step 5: Solve for x
    x = 39,393,969,997,585,568/221,167,215.90
  6. Step 6: Final answer
    x = 178,118,487.58

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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.