Home / 3,979,164.90-5,970,008.42-1,420,323.18

Finding the Fourth Proportional to 3,979,164.90, 5,970,008.42 and 1,420,323.18

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Solution

The fourth proportional to 3,979,164.90, 5,970,008.42 and 1,420,323.18 is: 2,130,934.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,979,164.90 : 5,970,008.42 = 1,420,323.18 : x
  2. Step 2: Convert to fraction form
    3,979,164.90/5,970,008.42 = 1,420,323.18/x
  3. Step 3: Cross multiply
    3,979,164.90x = 5,970,008.42 × 1,420,323.18
  4. Step 4: Simplify right side
    3,979,164.90x = 8,479,341,343,721.18
  5. Step 5: Solve for x
    x = 8,479,341,343,721.18/3,979,164.90
  6. Step 6: Final answer
    x = 2,130,934.90

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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.