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Finding the Fourth Proportional to 8,870,617.60, 13,305,926.40 and 3,191,027.20

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Solution

The fourth proportional to 8,870,617.60, 13,305,926.40 and 3,191,027.20 is: 4,786,540.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,870,617.60 : 13,305,926.40 = 3,191,027.20 : x
  2. Step 2: Convert to fraction form
    8,870,617.60/13,305,926.40 = 3,191,027.20/x
  3. Step 3: Cross multiply
    8,870,617.60x = 13,305,926.40 × 3,191,027.20
  4. Step 4: Simplify right side
    8,870,617.60x = 42,459,573,063,598.09
  5. Step 5: Solve for x
    x = 42,459,573,063,598.09/8,870,617.60
  6. Step 6: Final answer
    x = 4,786,540.80

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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.