Home / 12,886,512.90-17,782,328.34-7,587,365.46

Finding the Fourth Proportional to 12,886,512.90, 17,782,328.34 and 7,587,365.46

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Solution

The fourth proportional to 12,886,512.90, 17,782,328.34 and 7,587,365.46 is: 10,469,940.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,886,512.90 : 17,782,328.34 = 7,587,365.46 : x
  2. Step 2: Convert to fraction form
    12,886,512.90/17,782,328.34 = 7,587,365.46/x
  3. Step 3: Cross multiply
    12,886,512.90x = 17,782,328.34 × 7,587,365.46
  4. Step 4: Simplify right side
    12,886,512.90x = 134,921,023,845,295.14
  5. Step 5: Solve for x
    x = 134,921,023,845,295.14/12,886,512.90
  6. Step 6: Final answer
    x = 10,469,940.54

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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.