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Finding the Fourth Proportional to 37,668,160.91, 51,978,036.15 and 21,150,101.22

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Solution

The fourth proportional to 37,668,160.91, 51,978,036.15 and 21,150,101.22 is: 29,184,879.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,668,160.91 : 51,978,036.15 = 21,150,101.22 : x
  2. Step 2: Convert to fraction form
    37,668,160.91/51,978,036.15 = 21,150,101.22/x
  3. Step 3: Cross multiply
    37,668,160.91x = 51,978,036.15 × 21,150,101.22
  4. Step 4: Simplify right side
    37,668,160.91x = 1,099,340,725,789,319
  5. Step 5: Solve for x
    x = 1,099,340,725,789,319/37,668,160.91
  6. Step 6: Final answer
    x = 29,184,879.20

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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.