Home / 12,477,350.40-18,716,025.60-11,721,523.20

Finding the Fourth Proportional to 12,477,350.40, 18,716,025.60 and 11,721,523.20

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Solution

The fourth proportional to 12,477,350.40, 18,716,025.60 and 11,721,523.20 is: 17,582,284.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,477,350.40 : 18,716,025.60 = 11,721,523.20 : x
  2. Step 2: Convert to fraction form
    12,477,350.40/18,716,025.60 = 11,721,523.20/x
  3. Step 3: Cross multiply
    12,477,350.40x = 18,716,025.60 × 11,721,523.20
  4. Step 4: Simplify right side
    12,477,350.40x = 219,380,328,282,193.94
  5. Step 5: Solve for x
    x = 219,380,328,282,193.94/12,477,350.40
  6. Step 6: Final answer
    x = 17,582,284.80

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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.