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Finding the Fourth Proportional to 218,691,138.15, 301,793,799.19 and 119,571,954.22

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Solution

The fourth proportional to 218,691,138.15, 301,793,799.19 and 119,571,954.22 is: 165,009,312.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,691,138.15 : 301,793,799.19 = 119,571,954.22 : x
  2. Step 2: Convert to fraction form
    218,691,138.15/301,793,799.19 = 119,571,954.22/x
  3. Step 3: Cross multiply
    218,691,138.15x = 301,793,799.19 × 119,571,954.22
  4. Step 4: Simplify right side
    218,691,138.15x = 36,086,074,340,626,552
  5. Step 5: Solve for x
    x = 36,086,074,340,626,552/218,691,138.15
  6. Step 6: Final answer
    x = 165,009,312.43

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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.