Home / 20,747,903.84-31,123,350.55-7,968,408.54

Finding the Fourth Proportional to 20,747,903.84, 31,123,350.55 and 7,968,408.54

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Solution

The fourth proportional to 20,747,903.84, 31,123,350.55 and 7,968,408.54 is: 11,953,186.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,747,903.84 : 31,123,350.55 = 7,968,408.54 : x
  2. Step 2: Convert to fraction form
    20,747,903.84/31,123,350.55 = 7,968,408.54/x
  3. Step 3: Cross multiply
    20,747,903.84x = 31,123,350.55 × 7,968,408.54
  4. Step 4: Simplify right side
    20,747,903.84x = 248,003,572,251,993.78
  5. Step 5: Solve for x
    x = 248,003,572,251,993.78/20,747,903.84
  6. Step 6: Final answer
    x = 11,953,186.90

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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.