Home / 15,305,119.52-21,121,065.04-8,429,601.58

Finding the Fourth Proportional to 15,305,119.52, 21,121,065.04 and 8,429,601.58

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Solution

The fourth proportional to 15,305,119.52, 21,121,065.04 and 8,429,601.58 is: 11,632,850.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,305,119.52 : 21,121,065.04 = 8,429,601.58 : x
  2. Step 2: Convert to fraction form
    15,305,119.52/21,121,065.04 = 8,429,601.58/x
  3. Step 3: Cross multiply
    15,305,119.52x = 21,121,065.04 × 8,429,601.58
  4. Step 4: Simplify right side
    15,305,119.52x = 178,042,163,233,798.59
  5. Step 5: Solve for x
    x = 178,042,163,233,798.59/15,305,119.52
  6. Step 6: Final answer
    x = 11,632,850.24

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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.