Home / 72,216,757.14-99,650,717.17-40,428,667.38

Finding the Fourth Proportional to 72,216,757.14, 99,650,717.17 and 40,428,667.38

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Solution

The fourth proportional to 72,216,757.14, 99,650,717.17 and 40,428,667.38 is: 55,786,854.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,216,757.14 : 99,650,717.17 = 40,428,667.38 : x
  2. Step 2: Convert to fraction form
    72,216,757.14/99,650,717.17 = 40,428,667.38/x
  3. Step 3: Cross multiply
    72,216,757.14x = 99,650,717.17 × 40,428,667.38
  4. Step 4: Simplify right side
    72,216,757.14x = 4,028,745,698,917,003.50
  5. Step 5: Solve for x
    x = 4,028,745,698,917,003.50/72,216,757.14
  6. Step 6: Final answer
    x = 55,786,854.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.