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Finding the Third Proportional to 8,378,507 and 18,079,648

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Solution

The third proportional to 8,378,507 and 18,079,648 is: 39,013,355.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,378,507 : 18,079,648 = 18,079,648 : x
  2. Step 2: Convert to fraction form
    8,378,507/18,079,648 = 18,079,648/x
  3. Step 3: Cross multiply
    8,378,507x = 18,079,648 × 18,079,648
  4. Step 4: Simplify right side
    8,378,507x = 326,873,671,803,904
  5. Step 5: Solve for x
    x = 326,873,671,803,904/8,378,507
  6. Step 6: Final answer
    x = 39,013,355.46

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.