Home / 20,559,940.40-30,839,910.60-5,415,402.80

Finding the Fourth Proportional to 20,559,940.40, 30,839,910.60 and 5,415,402.80

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Solution

The fourth proportional to 20,559,940.40, 30,839,910.60 and 5,415,402.80 is: 8,123,104.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,559,940.40 : 30,839,910.60 = 5,415,402.80 : x
  2. Step 2: Convert to fraction form
    20,559,940.40/30,839,910.60 = 5,415,402.80/x
  3. Step 3: Cross multiply
    20,559,940.40x = 30,839,910.60 × 5,415,402.80
  4. Step 4: Simplify right side
    20,559,940.40x = 167,010,538,214,989.69
  5. Step 5: Solve for x
    x = 167,010,538,214,989.69/20,559,940.40
  6. Step 6: Final answer
    x = 8,123,104.20

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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.