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Finding the Third Proportional to 13,298,528 and 20,215,929

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Solution

The third proportional to 13,298,528 and 20,215,929 is: 30,731,505.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,298,528 : 20,215,929 = 20,215,929 : x
  2. Step 2: Convert to fraction form
    13,298,528/20,215,929 = 20,215,929/x
  3. Step 3: Cross multiply
    13,298,528x = 20,215,929 × 20,215,929
  4. Step 4: Simplify right side
    13,298,528x = 408,683,785,333,041
  5. Step 5: Solve for x
    x = 408,683,785,333,041/13,298,528
  6. Step 6: Final answer
    x = 30,731,505.42

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.