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Finding the Fourth Proportional to 18,241,798.40, 27,344,649.60 and 8,640,300.80

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Solution

The fourth proportional to 18,241,798.40, 27,344,649.60 and 8,640,300.80 is: 12,951,902.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,241,798.40 : 27,344,649.60 = 8,640,300.80 : x
  2. Step 2: Convert to fraction form
    18,241,798.40/27,344,649.60 = 8,640,300.80/x
  3. Step 3: Cross multiply
    18,241,798.40x = 27,344,649.60 × 8,640,300.80
  4. Step 4: Simplify right side
    18,241,798.40x = 236,265,997,814,599.72
  5. Step 5: Solve for x
    x = 236,265,997,814,599.72/18,241,798.40
  6. Step 6: Final answer
    x = 12,951,902.69

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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.