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Finding the Third Proportional to 8,687,528 and 12,985,364

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Solution

The third proportional to 8,687,528 and 12,985,364 is: 19,409,396.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,687,528 : 12,985,364 = 12,985,364 : x
  2. Step 2: Convert to fraction form
    8,687,528/12,985,364 = 12,985,364/x
  3. Step 3: Cross multiply
    8,687,528x = 12,985,364 × 12,985,364
  4. Step 4: Simplify right side
    8,687,528x = 168,619,678,212,496
  5. Step 5: Solve for x
    x = 168,619,678,212,496/8,687,528
  6. Step 6: Final answer
    x = 19,409,396.81

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.