Home / 13,286,965.60-18,336,012.48-7,175,393.76

Finding the Fourth Proportional to 13,286,965.60, 18,336,012.48 and 7,175,393.76

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Solution

The fourth proportional to 13,286,965.60, 18,336,012.48 and 7,175,393.76 is: 9,902,043.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,286,965.60 : 18,336,012.48 = 7,175,393.76 : x
  2. Step 2: Convert to fraction form
    13,286,965.60/18,336,012.48 = 7,175,393.76/x
  3. Step 3: Cross multiply
    13,286,965.60x = 18,336,012.48 × 7,175,393.76
  4. Step 4: Simplify right side
    13,286,965.60x = 131,568,109,532,274.12
  5. Step 5: Solve for x
    x = 131,568,109,532,274.12/13,286,965.60
  6. Step 6: Final answer
    x = 9,902,043.36

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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.