Home / 13,660,790.67-20,485,352.85-7,907,495.52

Finding the Fourth Proportional to 13,660,790.67, 20,485,352.85 and 7,907,495.52

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Solution

The fourth proportional to 13,660,790.67, 20,485,352.85 and 7,907,495.52 is: 11,857,866.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,660,790.67 : 20,485,352.85 = 7,907,495.52 : x
  2. Step 2: Convert to fraction form
    13,660,790.67/20,485,352.85 = 7,907,495.52/x
  3. Step 3: Cross multiply
    13,660,790.67x = 20,485,352.85 × 7,907,495.52
  4. Step 4: Simplify right side
    13,660,790.67x = 161,987,835,886,994.25
  5. Step 5: Solve for x
    x = 161,987,835,886,994.25/13,660,790.67
  6. Step 6: Final answer
    x = 11,857,866.78

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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.