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Finding the Third Proportional to 80,987,986 and 130,417,332

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Solution

The third proportional to 80,987,986 and 130,417,332 is: 210,014,859.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,987,986 : 130,417,332 = 130,417,332 : x
  2. Step 2: Convert to fraction form
    80,987,986/130,417,332 = 130,417,332/x
  3. Step 3: Cross multiply
    80,987,986x = 130,417,332 × 130,417,332
  4. Step 4: Simplify right side
    80,987,986x = 17,008,680,485,998,224
  5. Step 5: Solve for x
    x = 17,008,680,485,998,224/80,987,986
  6. Step 6: Final answer
    x = 210,014,859.32

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.