Home / 215,875,010.81-331,610,421.75

Finding the Third Proportional to 215,875,010.81 and 331,610,421.75

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Solution

The third proportional to 215,875,010.81 and 331,610,421.75 is: 509,394,169.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,875,010.81 : 331,610,421.75 = 331,610,421.75 : x
  2. Step 2: Convert to fraction form
    215,875,010.81/331,610,421.75 = 331,610,421.75/x
  3. Step 3: Cross multiply
    215,875,010.81x = 331,610,421.75 × 331,610,421.75
  4. Step 4: Simplify right side
    215,875,010.81x = 109,965,471,813,212,880
  5. Step 5: Solve for x
    x = 109,965,471,813,212,880/215,875,010.81
  6. Step 6: Final answer
    x = 509,394,169.34

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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.