Home / 12,115,912.10-18,173,868.15-8,289,536.90

Finding the Fourth Proportional to 12,115,912.10, 18,173,868.15 and 8,289,536.90

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Solution

The fourth proportional to 12,115,912.10, 18,173,868.15 and 8,289,536.90 is: 12,434,305.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,115,912.10 : 18,173,868.15 = 8,289,536.90 : x
  2. Step 2: Convert to fraction form
    12,115,912.10/18,173,868.15 = 8,289,536.90/x
  3. Step 3: Cross multiply
    12,115,912.10x = 18,173,868.15 × 8,289,536.90
  4. Step 4: Simplify right side
    12,115,912.10x = 150,652,950,645,159.72
  5. Step 5: Solve for x
    x = 150,652,950,645,159.72/12,115,912.10
  6. Step 6: Final answer
    x = 12,434,305.35

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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.