Home / 13,620,318.64-18,796,167.92-7,508,965.84

Finding the Fourth Proportional to 13,620,318.64, 18,796,167.92 and 7,508,965.84

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Solution

The fourth proportional to 13,620,318.64, 18,796,167.92 and 7,508,965.84 is: 10,362,443.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,620,318.64 : 18,796,167.92 = 7,508,965.84 : x
  2. Step 2: Convert to fraction form
    13,620,318.64/18,796,167.92 = 7,508,965.84/x
  3. Step 3: Cross multiply
    13,620,318.64x = 18,796,167.92 × 7,508,965.84
  4. Step 4: Simplify right side
    13,620,318.64x = 141,139,782,834,183.88
  5. Step 5: Solve for x
    x = 141,139,782,834,183.88/13,620,318.64
  6. Step 6: Final answer
    x = 10,362,443.53

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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.