Home / 82,247,477.40-123,371,216.10-31,131,163.80

Finding the Fourth Proportional to 82,247,477.40, 123,371,216.10 and 31,131,163.80

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Solution

The fourth proportional to 82,247,477.40, 123,371,216.10 and 31,131,163.80 is: 46,696,745.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,247,477.40 : 123,371,216.10 = 31,131,163.80 : x
  2. Step 2: Convert to fraction form
    82,247,477.40/123,371,216.10 = 31,131,163.80/x
  3. Step 3: Cross multiply
    82,247,477.40x = 123,371,216.10 × 31,131,163.80
  4. Step 4: Simplify right side
    82,247,477.40x = 3,840,689,536,614,297
  5. Step 5: Solve for x
    x = 3,840,689,536,614,297/82,247,477.40
  6. Step 6: Final answer
    x = 46,696,745.70

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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.