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Finding the Third Proportional to 80,987,988 and 130,417,335

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Solution

The third proportional to 80,987,988 and 130,417,335 is: 210,014,863.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,987,988 : 130,417,335 = 130,417,335 : x
  2. Step 2: Convert to fraction form
    80,987,988/130,417,335 = 130,417,335/x
  3. Step 3: Cross multiply
    80,987,988x = 130,417,335 × 130,417,335
  4. Step 4: Simplify right side
    80,987,988x = 17,008,681,268,502,224
  5. Step 5: Solve for x
    x = 17,008,681,268,502,224/80,987,988
  6. Step 6: Final answer
    x = 210,014,863.79

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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.