Home / 13,579,758.96-18,739,638.36-7,468,168.56

Finding the Fourth Proportional to 13,579,758.96, 18,739,638.36 and 7,468,168.56

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Solution

The fourth proportional to 13,579,758.96, 18,739,638.36 and 7,468,168.56 is: 10,305,836.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,579,758.96 : 18,739,638.36 = 7,468,168.56 : x
  2. Step 2: Convert to fraction form
    13,579,758.96/18,739,638.36 = 7,468,168.56/x
  3. Step 3: Cross multiply
    13,579,758.96x = 18,739,638.36 × 7,468,168.56
  4. Step 4: Simplify right side
    13,579,758.96x = 139,950,778,025,921.95
  5. Step 5: Solve for x
    x = 139,950,778,025,921.95/13,579,758.96
  6. Step 6: Final answer
    x = 10,305,836.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.