Home / 12,243,640.88-18,365,475.06-3,145,813.85

Finding the Fourth Proportional to 12,243,640.88, 18,365,475.06 and 3,145,813.85

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Solution

The fourth proportional to 12,243,640.88, 18,365,475.06 and 3,145,813.85 is: 4,718,724.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,243,640.88 : 18,365,475.06 = 3,145,813.85 : x
  2. Step 2: Convert to fraction form
    12,243,640.88/18,365,475.06 = 3,145,813.85/x
  3. Step 3: Cross multiply
    12,243,640.88x = 18,365,475.06 × 3,145,813.85
  4. Step 4: Simplify right side
    12,243,640.88x = 57,774,365,713,750.20
  5. Step 5: Solve for x
    x = 57,774,365,713,750.20/12,243,640.88
  6. Step 6: Final answer
    x = 4,718,724.30

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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.