Home / 13,579,749.16-18,739,679.78-7,468,177

Finding the Fourth Proportional to 13,579,749.16, 18,739,679.78 and 7,468,177

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Solution

The fourth proportional to 13,579,749.16, 18,739,679.78 and 7,468,177 is: 10,305,878.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,579,749.16 : 18,739,679.78 = 7,468,177 : x
  2. Step 2: Convert to fraction form
    13,579,749.16/18,739,679.78 = 7,468,177/x
  3. Step 3: Cross multiply
    13,579,749.16x = 18,739,679.78 × 7,468,177
  4. Step 4: Simplify right side
    13,579,749.16x = 139,951,245,520,361.06
  5. Step 5: Solve for x
    x = 139,951,245,520,361.06/13,579,749.16
  6. Step 6: Final answer
    x = 10,305,878.55

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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.