Home / 12,190,191.62-16,820,095.58-7,227,716.30

Finding the Fourth Proportional to 12,190,191.62, 16,820,095.58 and 7,227,716.30

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Solution

The fourth proportional to 12,190,191.62, 16,820,095.58 and 7,227,716.30 is: 9,972,843.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,190,191.62 : 16,820,095.58 = 7,227,716.30 : x
  2. Step 2: Convert to fraction form
    12,190,191.62/16,820,095.58 = 7,227,716.30/x
  3. Step 3: Cross multiply
    12,190,191.62x = 16,820,095.58 × 7,227,716.30
  4. Step 4: Simplify right side
    12,190,191.62x = 121,570,878,907,023.47
  5. Step 5: Solve for x
    x = 121,570,878,907,023.47/12,190,191.62
  6. Step 6: Final answer
    x = 9,972,843.96

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Double scale
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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.