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Finding the Third Proportional to 8,688,730 and 18,723,053

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Solution

The third proportional to 8,688,730 and 18,723,053 is: 40,345,679.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,688,730 : 18,723,053 = 18,723,053 : x
  2. Step 2: Convert to fraction form
    8,688,730/18,723,053 = 18,723,053/x
  3. Step 3: Cross multiply
    8,688,730x = 18,723,053 × 18,723,053
  4. Step 4: Simplify right side
    8,688,730x = 350,552,713,640,809
  5. Step 5: Solve for x
    x = 350,552,713,640,809/8,688,730
  6. Step 6: Final answer
    x = 40,345,679.25

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.