Home / 2,987,164.07-4,122,242.13-1,680,317.43

Finding the Fourth Proportional to 2,987,164.07, 4,122,242.13 and 1,680,317.43

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Solution

The fourth proportional to 2,987,164.07, 4,122,242.13 and 1,680,317.43 is: 2,318,813.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,987,164.07 : 4,122,242.13 = 1,680,317.43 : x
  2. Step 2: Convert to fraction form
    2,987,164.07/4,122,242.13 = 1,680,317.43/x
  3. Step 3: Cross multiply
    2,987,164.07x = 4,122,242.13 × 1,680,317.43
  4. Step 4: Simplify right side
    2,987,164.07x = 6,926,675,317,891.74
  5. Step 5: Solve for x
    x = 6,926,675,317,891.74/2,987,164.07
  6. Step 6: Final answer
    x = 2,318,813.15

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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.