Home / 20,617,963.67-28,452,856.34-11,450,606.42

Finding the Fourth Proportional to 20,617,963.67, 28,452,856.34 and 11,450,606.42

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Solution

The fourth proportional to 20,617,963.67, 28,452,856.34 and 11,450,606.42 is: 15,801,873.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,617,963.67 : 28,452,856.34 = 11,450,606.42 : x
  2. Step 2: Convert to fraction form
    20,617,963.67/28,452,856.34 = 11,450,606.42/x
  3. Step 3: Cross multiply
    20,617,963.67x = 28,452,856.34 × 11,450,606.42
  4. Step 4: Simplify right side
    20,617,963.67x = 325,802,459,474,141.69
  5. Step 5: Solve for x
    x = 325,802,459,474,141.69/20,617,963.67
  6. Step 6: Final answer
    x = 15,801,873.78

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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.