Home / 2,105,161.73-3,158,132.16-666,207.31

Finding the Fourth Proportional to 2,105,161.73, 3,158,132.16 and 666,207.31

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Solution

The fourth proportional to 2,105,161.73, 3,158,132.16 and 666,207.31 is: 999,434.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,105,161.73 : 3,158,132.16 = 666,207.31 : x
  2. Step 2: Convert to fraction form
    2,105,161.73/3,158,132.16 = 666,207.31/x
  3. Step 3: Cross multiply
    2,105,161.73x = 3,158,132.16 × 666,207.31
  4. Step 4: Simplify right side
    2,105,161.73x = 2,103,970,711,816.39
  5. Step 5: Solve for x
    x = 2,103,970,711,816.39/2,105,161.73
  6. Step 6: Final answer
    x = 999,434.24

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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.