Home / 5,387,121.74-7,434,386.01-2,939,890.82

Finding the Fourth Proportional to 5,387,121.74, 7,434,386.01 and 2,939,890.82

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Solution

The fourth proportional to 5,387,121.74, 7,434,386.01 and 2,939,890.82 is: 4,057,135.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,387,121.74 : 7,434,386.01 = 2,939,890.82 : x
  2. Step 2: Convert to fraction form
    5,387,121.74/7,434,386.01 = 2,939,890.82/x
  3. Step 3: Cross multiply
    5,387,121.74x = 7,434,386.01 × 2,939,890.82
  4. Step 4: Simplify right side
    5,387,121.74x = 21,856,283,145,963.50
  5. Step 5: Solve for x
    x = 21,856,283,145,963.50/5,387,121.74
  6. Step 6: Final answer
    x = 4,057,135.55

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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.