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Finding the Third Proportional to 8,631,420.75 and 12,888,051.75

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Solution

The third proportional to 8,631,420.75 and 12,888,051.75 is: 19,243,862.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,631,420.75 : 12,888,051.75 = 12,888,051.75 : x
  2. Step 2: Convert to fraction form
    8,631,420.75/12,888,051.75 = 12,888,051.75/x
  3. Step 3: Cross multiply
    8,631,420.75x = 12,888,051.75 × 12,888,051.75
  4. Step 4: Simplify right side
    8,631,420.75x = 166,101,877,910,678.06
  5. Step 5: Solve for x
    x = 166,101,877,910,678.06/8,631,420.75
  6. Step 6: Final answer
    x = 19,243,862.94

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.