Home / 7,776,039.60-11,664,059.40-3,989,905.20

Finding the Fourth Proportional to 7,776,039.60, 11,664,059.40 and 3,989,905.20

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Solution

The fourth proportional to 7,776,039.60, 11,664,059.40 and 3,989,905.20 is: 5,984,857.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,776,039.60 : 11,664,059.40 = 3,989,905.20 : x
  2. Step 2: Convert to fraction form
    7,776,039.60/11,664,059.40 = 3,989,905.20/x
  3. Step 3: Cross multiply
    7,776,039.60x = 11,664,059.40 × 3,989,905.20
  4. Step 4: Simplify right side
    7,776,039.60x = 46,538,491,253,168.88
  5. Step 5: Solve for x
    x = 46,538,491,253,168.88/7,776,039.60
  6. Step 6: Final answer
    x = 5,984,857.80

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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.