Home / 3,900,391.07-5,382,510.39-2,181,511.59

Finding the Fourth Proportional to 3,900,391.07, 5,382,510.39 and 2,181,511.59

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Solution

The fourth proportional to 3,900,391.07, 5,382,510.39 and 2,181,511.59 is: 3,010,469.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,900,391.07 : 5,382,510.39 = 2,181,511.59 : x
  2. Step 2: Convert to fraction form
    3,900,391.07/5,382,510.39 = 2,181,511.59/x
  3. Step 3: Cross multiply
    3,900,391.07x = 5,382,510.39 × 2,181,511.59
  4. Step 4: Simplify right side
    3,900,391.07x = 11,742,008,799,080.42
  5. Step 5: Solve for x
    x = 11,742,008,799,080.42/3,900,391.07
  6. Step 6: Final answer
    x = 3,010,469.62

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1.5x scale

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.