Home / 85,993,205.05-129,045,301.49-31,401,219.79

Finding the Fourth Proportional to 85,993,205.05, 129,045,301.49 and 31,401,219.79

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Solution

The fourth proportional to 85,993,205.05, 129,045,301.49 and 31,401,219.79 is: 47,122,093.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,993,205.05 : 129,045,301.49 = 31,401,219.79 : x
  2. Step 2: Convert to fraction form
    85,993,205.05/129,045,301.49 = 31,401,219.79/x
  3. Step 3: Cross multiply
    85,993,205.05x = 129,045,301.49 × 31,401,219.79
  4. Step 4: Simplify right side
    85,993,205.05x = 4,052,179,874,474,685.50
  5. Step 5: Solve for x
    x = 4,052,179,874,474,685.50/85,993,205.05
  6. Step 6: Final answer
    x = 47,122,093.80

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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.