Home / 2,156,686.62-2,976,237.42-1,189,816.53

Finding the Fourth Proportional to 2,156,686.62, 2,976,237.42 and 1,189,816.53

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Solution

The fourth proportional to 2,156,686.62, 2,976,237.42 and 1,189,816.53 is: 1,641,952.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,156,686.62 : 2,976,237.42 = 1,189,816.53 : x
  2. Step 2: Convert to fraction form
    2,156,686.62/2,976,237.42 = 1,189,816.53/x
  3. Step 3: Cross multiply
    2,156,686.62x = 2,976,237.42 × 1,189,816.53
  4. Step 4: Simplify right side
    2,156,686.62x = 3,541,176,479,520.55
  5. Step 5: Solve for x
    x = 3,541,176,479,520.55/2,156,686.62
  6. Step 6: Final answer
    x = 1,641,952.26

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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.