Home / 20,863,849.07-28,791,682.81-11,569,919.38

Finding the Fourth Proportional to 20,863,849.07, 28,791,682.81 and 11,569,919.38

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Solution

The fourth proportional to 20,863,849.07, 28,791,682.81 and 11,569,919.38 is: 15,966,250.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,863,849.07 : 28,791,682.81 = 11,569,919.38 : x
  2. Step 2: Convert to fraction form
    20,863,849.07/28,791,682.81 = 11,569,919.38/x
  3. Step 3: Cross multiply
    20,863,849.07x = 28,791,682.81 × 11,569,919.38
  4. Step 4: Simplify right side
    20,863,849.07x = 333,117,448,825,327.88
  5. Step 5: Solve for x
    x = 333,117,448,825,327.88/20,863,849.07
  6. Step 6: Final answer
    x = 15,966,250.89

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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.