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Finding the Third Proportional to 18,359,136 and 39,960,864

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Solution

The third proportional to 18,359,136 and 39,960,864 is: 86,979,618.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,359,136 : 39,960,864 = 39,960,864 : x
  2. Step 2: Convert to fraction form
    18,359,136/39,960,864 = 39,960,864/x
  3. Step 3: Cross multiply
    18,359,136x = 39,960,864 × 39,960,864
  4. Step 4: Simplify right side
    18,359,136x = 1,596,870,651,626,496
  5. Step 5: Solve for x
    x = 1,596,870,651,626,496/18,359,136
  6. Step 6: Final answer
    x = 86,979,618.85

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.