Home / 13,331,649.85-18,397,676.79-7,220,078.35

Finding the Fourth Proportional to 13,331,649.85, 18,397,676.79 and 7,220,078.35

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Solution

The fourth proportional to 13,331,649.85, 18,397,676.79 and 7,220,078.35 is: 9,963,708.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,331,649.85 : 18,397,676.79 = 7,220,078.35 : x
  2. Step 2: Convert to fraction form
    13,331,649.85/18,397,676.79 = 7,220,078.35/x
  3. Step 3: Cross multiply
    13,331,649.85x = 18,397,676.79 × 7,220,078.35
  4. Step 4: Simplify right side
    13,331,649.85x = 132,832,667,835,782.30
  5. Step 5: Solve for x
    x = 132,832,667,835,782.30/13,331,649.85
  6. Step 6: Final answer
    x = 9,963,708.12

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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.