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Finding the Fourth Proportional to 218,070,388.80, 326,827,720.80 and 115,883,380.80

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Solution

The fourth proportional to 218,070,388.80, 326,827,720.80 and 115,883,380.80 is: 173,677,414.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,070,388.80 : 326,827,720.80 = 115,883,380.80 : x
  2. Step 2: Convert to fraction form
    218,070,388.80/326,827,720.80 = 115,883,380.80/x
  3. Step 3: Cross multiply
    218,070,388.80x = 326,827,720.80 × 115,883,380.80
  4. Step 4: Simplify right side
    218,070,388.80x = 37,873,901,225,462,480
  5. Step 5: Solve for x
    x = 37,873,901,225,462,480/218,070,388.80
  6. Step 6: Final answer
    x = 173,677,414.13

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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.