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Finding the Third Proportional to 86,749,431 and 115,653,007.50

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Solution

The third proportional to 86,749,431 and 115,653,007.50 is: 154,186,811.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,749,431 : 115,653,007.50 = 115,653,007.50 : x
  2. Step 2: Convert to fraction form
    86,749,431/115,653,007.50 = 115,653,007.50/x
  3. Step 3: Cross multiply
    86,749,431x = 115,653,007.50 × 115,653,007.50
  4. Step 4: Simplify right side
    86,749,431x = 13,375,618,143,795,056
  5. Step 5: Solve for x
    x = 13,375,618,143,795,056/86,749,431
  6. Step 6: Final answer
    x = 154,186,811.25

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.