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Finding the Third Proportional to 18,881,012.91 and 29,155,588.78

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Solution

The third proportional to 18,881,012.91 and 29,155,588.78 is: 45,021,332.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,881,012.91 : 29,155,588.78 = 29,155,588.78 : x
  2. Step 2: Convert to fraction form
    18,881,012.91/29,155,588.78 = 29,155,588.78/x
  3. Step 3: Cross multiply
    18,881,012.91x = 29,155,588.78 × 29,155,588.78
  4. Step 4: Simplify right side
    18,881,012.91x = 850,048,357,181,350.88
  5. Step 5: Solve for x
    x = 850,048,357,181,350.88/18,881,012.91
  6. Step 6: Final answer
    x = 45,021,332.35

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.