Home / 5,186,976.29-7,780,838.10-1,992,102.47

Finding the Fourth Proportional to 5,186,976.29, 7,780,838.10 and 1,992,102.47

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Solution

The fourth proportional to 5,186,976.29, 7,780,838.10 and 1,992,102.47 is: 2,988,297.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,186,976.29 : 7,780,838.10 = 1,992,102.47 : x
  2. Step 2: Convert to fraction form
    5,186,976.29/7,780,838.10 = 1,992,102.47/x
  3. Step 3: Cross multiply
    5,186,976.29x = 7,780,838.10 × 1,992,102.47
  4. Step 4: Simplify right side
    5,186,976.29x = 15,500,226,797,680.11
  5. Step 5: Solve for x
    x = 15,500,226,797,680.11/5,186,976.29
  6. Step 6: Final answer
    x = 2,988,297.21

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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.