Home / 47,959,129.81-71,907,764.94-18,815,914.15

Finding the Fourth Proportional to 47,959,129.81, 71,907,764.94 and 18,815,914.15

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Solution

The fourth proportional to 47,959,129.81, 71,907,764.94 and 18,815,914.15 is: 28,211,736.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,959,129.81 : 71,907,764.94 = 18,815,914.15 : x
  2. Step 2: Convert to fraction form
    47,959,129.81/71,907,764.94 = 18,815,914.15/x
  3. Step 3: Cross multiply
    47,959,129.81x = 71,907,764.94 × 18,815,914.15
  4. Step 4: Simplify right side
    47,959,129.81x = 1,353,010,331,829,419.75
  5. Step 5: Solve for x
    x = 1,353,010,331,829,419.75/47,959,129.81
  6. Step 6: Final answer
    x = 28,211,736.48

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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.