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Finding the Fourth Proportional to 18,353,308.40, 27,498,469.80 and 8,748,004.40

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Solution

The fourth proportional to 18,353,308.40, 27,498,469.80 and 8,748,004.40 is: 13,106,995.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,353,308.40 : 27,498,469.80 = 8,748,004.40 : x
  2. Step 2: Convert to fraction form
    18,353,308.40/27,498,469.80 = 8,748,004.40/x
  3. Step 3: Cross multiply
    18,353,308.40x = 27,498,469.80 × 8,748,004.40
  4. Step 4: Simplify right side
    18,353,308.40x = 240,556,734,803,667.12
  5. Step 5: Solve for x
    x = 240,556,734,803,667.12/18,353,308.40
  6. Step 6: Final answer
    x = 13,106,995.73

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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.