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Finding the Third Proportional to 8,398,740 and 13,029,702

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Solution

The third proportional to 8,398,740 and 13,029,702 is: 20,214,119.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,398,740 : 13,029,702 = 13,029,702 : x
  2. Step 2: Convert to fraction form
    8,398,740/13,029,702 = 13,029,702/x
  3. Step 3: Cross multiply
    8,398,740x = 13,029,702 × 13,029,702
  4. Step 4: Simplify right side
    8,398,740x = 169,773,134,208,804
  5. Step 5: Solve for x
    x = 169,773,134,208,804/8,398,740
  6. Step 6: Final answer
    x = 20,214,119.52

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.