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Finding the Fourth Proportional to 18,109,209.60, 27,163,814.40 and 10,917,041.40

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Solution

The fourth proportional to 18,109,209.60, 27,163,814.40 and 10,917,041.40 is: 16,375,562.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,109,209.60 : 27,163,814.40 = 10,917,041.40 : x
  2. Step 2: Convert to fraction form
    18,109,209.60/27,163,814.40 = 10,917,041.40/x
  3. Step 3: Cross multiply
    18,109,209.60x = 27,163,814.40 × 10,917,041.40
  4. Step 4: Simplify right side
    18,109,209.60x = 296,548,486,386,716.12
  5. Step 5: Solve for x
    x = 296,548,486,386,716.12/18,109,209.60
  6. Step 6: Final answer
    x = 16,375,562.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.