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Finding the Third Proportional to 80,987,984 and 130,417,329

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Solution

The third proportional to 80,987,984 and 130,417,329 is: 210,014,854.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,987,984 : 130,417,329 = 130,417,329 : x
  2. Step 2: Convert to fraction form
    80,987,984/130,417,329 = 130,417,329/x
  3. Step 3: Cross multiply
    80,987,984x = 130,417,329 × 130,417,329
  4. Step 4: Simplify right side
    80,987,984x = 17,008,679,703,494,240
  5. Step 5: Solve for x
    x = 17,008,679,703,494,240/80,987,984
  6. Step 6: Final answer
    x = 210,014,854.84

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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.