Home / 13,286,906.48-18,335,930.76-7,175,334.80

Finding the Fourth Proportional to 13,286,906.48, 18,335,930.76 and 7,175,334.80

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Solution

The fourth proportional to 13,286,906.48, 18,335,930.76 and 7,175,334.80 is: 9,901,961.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,286,906.48 : 18,335,930.76 = 7,175,334.80 : x
  2. Step 2: Convert to fraction form
    13,286,906.48/18,335,930.76 = 7,175,334.80/x
  3. Step 3: Cross multiply
    13,286,906.48x = 18,335,930.76 × 7,175,334.80
  4. Step 4: Simplify right side
    13,286,906.48x = 131,566,442,072,618.45
  5. Step 5: Solve for x
    x = 131,566,442,072,618.45/13,286,906.48
  6. Step 6: Final answer
    x = 9,901,961.93

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1.5x scale

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.