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Finding the Third Proportional to 40,956,858 and 87,991,920

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Solution

The third proportional to 40,956,858 and 87,991,920 is: 189,042,284.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,956,858 : 87,991,920 = 87,991,920 : x
  2. Step 2: Convert to fraction form
    40,956,858/87,991,920 = 87,991,920/x
  3. Step 3: Cross multiply
    40,956,858x = 87,991,920 × 87,991,920
  4. Step 4: Simplify right side
    40,956,858x = 7,742,577,985,286,400
  5. Step 5: Solve for x
    x = 7,742,577,985,286,400/40,956,858
  6. Step 6: Final answer
    x = 189,042,284.09

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.