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Finding the Fourth Proportional to 13,029,772.16, 17,973,615.04 and 8,126,481.58

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Solution

The fourth proportional to 13,029,772.16, 17,973,615.04 and 8,126,481.58 is: 11,209,885.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,029,772.16 : 17,973,615.04 = 8,126,481.58 : x
  2. Step 2: Convert to fraction form
    13,029,772.16/17,973,615.04 = 8,126,481.58/x
  3. Step 3: Cross multiply
    13,029,772.16x = 17,973,615.04 × 8,126,481.58
  4. Step 4: Simplify right side
    13,029,772.16x = 146,062,251,483,320.72
  5. Step 5: Solve for x
    x = 146,062,251,483,320.72/13,029,772.16
  6. Step 6: Final answer
    x = 11,209,885.30

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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.