Home / 71,505,317.88-107,258,973.26-20,387,336.69

Finding the Fourth Proportional to 71,505,317.88, 107,258,973.26 and 20,387,336.69

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Solution

The fourth proportional to 71,505,317.88, 107,258,973.26 and 20,387,336.69 is: 30,581,289.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,505,317.88 : 107,258,973.26 = 20,387,336.69 : x
  2. Step 2: Convert to fraction form
    71,505,317.88/107,258,973.26 = 20,387,336.69/x
  3. Step 3: Cross multiply
    71,505,317.88x = 107,258,973.26 × 20,387,336.69
  4. Step 4: Simplify right side
    71,505,317.88x = 2,186,724,801,041,537.50
  5. Step 5: Solve for x
    x = 2,186,724,801,041,537.50/71,505,317.88
  6. Step 6: Final answer
    x = 30,581,289.14

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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.