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Finding the Third Proportional to 3,123,749.81 and 4,718,908.13

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Solution

The third proportional to 3,123,749.81 and 4,718,908.13 is: 7,128,641.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,123,749.81 : 4,718,908.13 = 4,718,908.13 : x
  2. Step 2: Convert to fraction form
    3,123,749.81/4,718,908.13 = 4,718,908.13/x
  3. Step 3: Cross multiply
    3,123,749.81x = 4,718,908.13 × 4,718,908.13
  4. Step 4: Simplify right side
    3,123,749.81x = 22,268,093,892,191.02
  5. Step 5: Solve for x
    x = 22,268,093,892,191.02/3,123,749.81
  6. Step 6: Final answer
    x = 7,128,641.93

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.