Home / 20,559,944.40-30,839,916.60-5,415,406.80

Finding the Fourth Proportional to 20,559,944.40, 30,839,916.60 and 5,415,406.80

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Solution

The fourth proportional to 20,559,944.40, 30,839,916.60 and 5,415,406.80 is: 8,123,110.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,559,944.40 : 30,839,916.60 = 5,415,406.80 : x
  2. Step 2: Convert to fraction form
    20,559,944.40/30,839,916.60 = 5,415,406.80/x
  3. Step 3: Cross multiply
    20,559,944.40x = 30,839,916.60 × 5,415,406.80
  4. Step 4: Simplify right side
    20,559,944.40x = 167,010,694,067,072.88
  5. Step 5: Solve for x
    x = 167,010,694,067,072.88/20,559,944.40
  6. Step 6: Final answer
    x = 8,123,110.20

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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.