Home / 20,402,239.41-28,154,687.31-11,109,923.82

Finding the Fourth Proportional to 20,402,239.41, 28,154,687.31 and 11,109,923.82

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Solution

The fourth proportional to 20,402,239.41, 28,154,687.31 and 11,109,923.82 is: 15,331,475.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,402,239.41 : 28,154,687.31 = 11,109,923.82 : x
  2. Step 2: Convert to fraction form
    20,402,239.41/28,154,687.31 = 11,109,923.82/x
  3. Step 3: Cross multiply
    20,402,239.41x = 28,154,687.31 × 11,109,923.82
  4. Step 4: Simplify right side
    20,402,239.41x = 312,796,431,190,020.69
  5. Step 5: Solve for x
    x = 312,796,431,190,020.69/20,402,239.41
  6. Step 6: Final answer
    x = 15,331,475.38

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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.