Home / 12,018,465.92-18,045,708.83-10,404,213.89

Finding the Fourth Proportional to 12,018,465.92, 18,045,708.83 and 10,404,213.89

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Solution

The fourth proportional to 12,018,465.92, 18,045,708.83 and 10,404,213.89 is: 15,621,911.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,018,465.92 : 18,045,708.83 = 10,404,213.89 : x
  2. Step 2: Convert to fraction form
    12,018,465.92/18,045,708.83 = 10,404,213.89/x
  3. Step 3: Cross multiply
    12,018,465.92x = 18,045,708.83 × 10,404,213.89
  4. Step 4: Simplify right side
    12,018,465.92x = 187,751,414,360,747.81
  5. Step 5: Solve for x
    x = 187,751,414,360,747.81/12,018,465.92
  6. Step 6: Final answer
    x = 15,621,911.78

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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.