Home / 218,107,909.39-300,987,486.55-124,022,063.28

Finding the Fourth Proportional to 218,107,909.39, 300,987,486.55 and 124,022,063.28

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Solution

The fourth proportional to 218,107,909.39, 300,987,486.55 and 124,022,063.28 is: 171,149,635.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,107,909.39 : 300,987,486.55 = 124,022,063.28 : x
  2. Step 2: Convert to fraction form
    218,107,909.39/300,987,486.55 = 124,022,063.28/x
  3. Step 3: Cross multiply
    218,107,909.39x = 300,987,486.55 × 124,022,063.28
  4. Step 4: Simplify right side
    218,107,909.39x = 37,329,089,103,977,736
  5. Step 5: Solve for x
    x = 37,329,089,103,977,736/218,107,909.39
  6. Step 6: Final answer
    x = 171,149,635.10

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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.