Home / 18,923,963.37-28,390,732.70-5,277,111.22

Finding the Fourth Proportional to 18,923,963.37, 28,390,732.70 and 5,277,111.22

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Solution

The fourth proportional to 18,923,963.37, 28,390,732.70 and 5,277,111.22 is: 7,917,001.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,923,963.37 : 28,390,732.70 = 5,277,111.22 : x
  2. Step 2: Convert to fraction form
    18,923,963.37/28,390,732.70 = 5,277,111.22/x
  3. Step 3: Cross multiply
    18,923,963.37x = 28,390,732.70 × 5,277,111.22
  4. Step 4: Simplify right side
    18,923,963.37x = 149,821,053,933,237.22
  5. Step 5: Solve for x
    x = 149,821,053,933,237.22/18,923,963.37
  6. Step 6: Final answer
    x = 7,917,001.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.