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Finding the Third Proportional to 4,039,729 and 8,639,323

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Solution

The third proportional to 4,039,729 and 8,639,323 is: 18,475,967.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,039,729 : 8,639,323 = 8,639,323 : x
  2. Step 2: Convert to fraction form
    4,039,729/8,639,323 = 8,639,323/x
  3. Step 3: Cross multiply
    4,039,729x = 8,639,323 × 8,639,323
  4. Step 4: Simplify right side
    4,039,729x = 74,637,901,898,329
  5. Step 5: Solve for x
    x = 74,637,901,898,329/4,039,729
  6. Step 6: Final answer
    x = 18,475,967.55

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.