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Finding the Third Proportional to 18,036,416 and 39,961,728

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Solution

The third proportional to 18,036,416 and 39,961,728 is: 88,539,746.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,036,416 : 39,961,728 = 39,961,728 : x
  2. Step 2: Convert to fraction form
    18,036,416/39,961,728 = 39,961,728/x
  3. Step 3: Cross multiply
    18,036,416x = 39,961,728 × 39,961,728
  4. Step 4: Simplify right side
    18,036,416x = 1,596,939,704,745,984
  5. Step 5: Solve for x
    x = 1,596,939,704,745,984/18,036,416
  6. Step 6: Final answer
    x = 88,539,746.74

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.