Home / 2,153,963.12-2,972,975.62-1,338,782.44

Finding the Fourth Proportional to 2,153,963.12, 2,972,975.62 and 1,338,782.44

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Solution

The fourth proportional to 2,153,963.12, 2,972,975.62 and 1,338,782.44 is: 1,847,834.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,153,963.12 : 2,972,975.62 = 1,338,782.44 : x
  2. Step 2: Convert to fraction form
    2,153,963.12/2,972,975.62 = 1,338,782.44/x
  3. Step 3: Cross multiply
    2,153,963.12x = 2,972,975.62 × 1,338,782.44
  4. Step 4: Simplify right side
    2,153,963.12x = 3,980,167,554,604.11
  5. Step 5: Solve for x
    x = 3,980,167,554,604.11/2,153,963.12
  6. Step 6: Final answer
    x = 1,847,834.59

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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.