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Finding the Third Proportional to 18,711,136 and 40,309,756

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Solution

The third proportional to 18,711,136 and 40,309,756 is: 86,840,073.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,711,136 : 40,309,756 = 40,309,756 : x
  2. Step 2: Convert to fraction form
    18,711,136/40,309,756 = 40,309,756/x
  3. Step 3: Cross multiply
    18,711,136x = 40,309,756 × 40,309,756
  4. Step 4: Simplify right side
    18,711,136x = 1,624,876,428,779,536
  5. Step 5: Solve for x
    x = 1,624,876,428,779,536/18,711,136
  6. Step 6: Final answer
    x = 86,840,073.67

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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.