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Finding the Third Proportional to 9,141,558.75 and 18,991,699.88

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Solution

The third proportional to 9,141,558.75 and 18,991,699.88 is: 39,455,488.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,141,558.75 : 18,991,699.88 = 18,991,699.88 : x
  2. Step 2: Convert to fraction form
    9,141,558.75/18,991,699.88 = 18,991,699.88/x
  3. Step 3: Cross multiply
    9,141,558.75x = 18,991,699.88 × 18,991,699.88
  4. Step 4: Simplify right side
    9,141,558.75x = 360,684,664,142,075
  5. Step 5: Solve for x
    x = 360,684,664,142,075/9,141,558.75
  6. Step 6: Final answer
    x = 39,455,488.28

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.