Home / 10,485,388.80-15,728,083.20-9,477,619.20

Finding the Fourth Proportional to 10,485,388.80, 15,728,083.20 and 9,477,619.20

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Solution

The fourth proportional to 10,485,388.80, 15,728,083.20 and 9,477,619.20 is: 14,216,428.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,485,388.80 : 15,728,083.20 = 9,477,619.20 : x
  2. Step 2: Convert to fraction form
    10,485,388.80/15,728,083.20 = 9,477,619.20/x
  3. Step 3: Cross multiply
    10,485,388.80x = 15,728,083.20 × 9,477,619.20
  4. Step 4: Simplify right side
    10,485,388.80x = 149,064,783,315,517.41
  5. Step 5: Solve for x
    x = 149,064,783,315,517.41/10,485,388.80
  6. Step 6: Final answer
    x = 14,216,428.80

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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.