Home / 8,321,162.60-12,456,860.70-7,829,028.20

Finding the Fourth Proportional to 8,321,162.60, 12,456,860.70 and 7,829,028.20

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Solution

The fourth proportional to 8,321,162.60, 12,456,860.70 and 7,829,028.20 is: 11,720,130.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,321,162.60 : 12,456,860.70 = 7,829,028.20 : x
  2. Step 2: Convert to fraction form
    8,321,162.60/12,456,860.70 = 7,829,028.20/x
  3. Step 3: Cross multiply
    8,321,162.60x = 12,456,860.70 × 7,829,028.20
  4. Step 4: Simplify right side
    8,321,162.60x = 97,525,113,703,771.73
  5. Step 5: Solve for x
    x = 97,525,113,703,771.73/8,321,162.60
  6. Step 6: Final answer
    x = 11,720,130.75

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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.