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Finding the Fourth Proportional to 8,515,659.62, 11,749,856.01 and 4,893,287.78

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Solution

The fourth proportional to 8,515,659.62, 11,749,856.01 and 4,893,287.78 is: 6,751,729.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,515,659.62 : 11,749,856.01 = 4,893,287.78 : x
  2. Step 2: Convert to fraction form
    8,515,659.62/11,749,856.01 = 4,893,287.78/x
  3. Step 3: Cross multiply
    8,515,659.62x = 11,749,856.01 × 4,893,287.78
  4. Step 4: Simplify right side
    8,515,659.62x = 57,495,426,830,492.56
  5. Step 5: Solve for x
    x = 57,495,426,830,492.56/8,515,659.62
  6. Step 6: Final answer
    x = 6,751,729.10

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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.