Home / 217,970,619.68-300,872,345.06-129,892,237.04

Finding the Fourth Proportional to 217,970,619.68, 300,872,345.06 and 129,892,237.04

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Solution

The fourth proportional to 217,970,619.68, 300,872,345.06 and 129,892,237.04 is: 179,294,723.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,970,619.68 : 300,872,345.06 = 129,892,237.04 : x
  2. Step 2: Convert to fraction form
    217,970,619.68/300,872,345.06 = 129,892,237.04/x
  3. Step 3: Cross multiply
    217,970,619.68x = 300,872,345.06 × 129,892,237.04
  4. Step 4: Simplify right side
    217,970,619.68x = 39,080,981,963,314,192
  5. Step 5: Solve for x
    x = 39,080,981,963,314,192/217,970,619.68
  6. Step 6: Final answer
    x = 179,294,723.39

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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.