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Finding the Third Proportional to 61,128,159 and 91,449,891

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Solution

The third proportional to 61,128,159 and 91,449,891 is: 136,812,276.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,128,159 : 91,449,891 = 91,449,891 : x
  2. Step 2: Convert to fraction form
    61,128,159/91,449,891 = 91,449,891/x
  3. Step 3: Cross multiply
    61,128,159x = 91,449,891 × 91,449,891
  4. Step 4: Simplify right side
    61,128,159x = 8,363,082,563,911,881
  5. Step 5: Solve for x
    x = 8,363,082,563,911,881/61,128,159
  6. Step 6: Final answer
    x = 136,812,276.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.