Home / 20,488,097.31-28,273,645.07-11,195,667.81

Finding the Fourth Proportional to 20,488,097.31, 28,273,645.07 and 11,195,667.81

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Solution

The fourth proportional to 20,488,097.31, 28,273,645.07 and 11,195,667.81 is: 15,450,060.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,488,097.31 : 28,273,645.07 = 11,195,667.81 : x
  2. Step 2: Convert to fraction form
    20,488,097.31/28,273,645.07 = 11,195,667.81/x
  3. Step 3: Cross multiply
    20,488,097.31x = 28,273,645.07 × 11,195,667.81
  4. Step 4: Simplify right side
    20,488,097.31x = 316,542,337,925,585.88
  5. Step 5: Solve for x
    x = 316,542,337,925,585.88/20,488,097.31
  6. Step 6: Final answer
    x = 15,450,060.25

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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.