Home / 13,338,999.36-18,408,161.52-8,185,209.12

Finding the Fourth Proportional to 13,338,999.36, 18,408,161.52 and 8,185,209.12

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Solution

The fourth proportional to 13,338,999.36, 18,408,161.52 and 8,185,209.12 is: 11,295,798.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,338,999.36 : 18,408,161.52 = 8,185,209.12 : x
  2. Step 2: Convert to fraction form
    13,338,999.36/18,408,161.52 = 8,185,209.12/x
  3. Step 3: Cross multiply
    13,338,999.36x = 18,408,161.52 × 8,185,209.12
  4. Step 4: Simplify right side
    13,338,999.36x = 150,674,651,555,937.06
  5. Step 5: Solve for x
    x = 150,674,651,555,937.06/13,338,999.36
  6. Step 6: Final answer
    x = 11,295,798.69

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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.