Home / 20,460,661.47-28,231,497.89-11,757,152.57

Finding the Fourth Proportional to 20,460,661.47, 28,231,497.89 and 11,757,152.57

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Solution

The fourth proportional to 20,460,661.47, 28,231,497.89 and 11,757,152.57 is: 16,222,448.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,460,661.47 : 28,231,497.89 = 11,757,152.57 : x
  2. Step 2: Convert to fraction form
    20,460,661.47/28,231,497.89 = 11,757,152.57/x
  3. Step 3: Cross multiply
    20,460,661.47x = 28,231,497.89 × 11,757,152.57
  4. Step 4: Simplify right side
    20,460,661.47x = 331,922,027,976,956
  5. Step 5: Solve for x
    x = 331,922,027,976,956/20,460,661.47
  6. Step 6: Final answer
    x = 16,222,448.55

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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.