Home / 8,321,161.60-12,456,859.20-7,829,027.20

Finding the Fourth Proportional to 8,321,161.60, 12,456,859.20 and 7,829,027.20

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Solution

The fourth proportional to 8,321,161.60, 12,456,859.20 and 7,829,027.20 is: 11,720,129.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,321,161.60 : 12,456,859.20 = 7,829,027.20 : x
  2. Step 2: Convert to fraction form
    8,321,161.60/12,456,859.20 = 7,829,027.20/x
  3. Step 3: Cross multiply
    8,321,161.60x = 12,456,859.20 × 7,829,027.20
  4. Step 4: Simplify right side
    8,321,161.60x = 97,525,089,503,370.23
  5. Step 5: Solve for x
    x = 97,525,089,503,370.23/8,321,161.60
  6. Step 6: Final answer
    x = 11,720,129.25

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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.