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Finding the Third Proportional to 3,715,389 and 7,685,646.19

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Solution

The third proportional to 3,715,389 and 7,685,646.19 is: 15,898,512.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,715,389 : 7,685,646.19 = 7,685,646.19 : x
  2. Step 2: Convert to fraction form
    3,715,389/7,685,646.19 = 7,685,646.19/x
  3. Step 3: Cross multiply
    3,715,389x = 7,685,646.19 × 7,685,646.19
  4. Step 4: Simplify right side
    3,715,389x = 59,069,157,319,433.28
  5. Step 5: Solve for x
    x = 59,069,157,319,433.28/3,715,389
  6. Step 6: Final answer
    x = 15,898,512.19

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.