Home / 15,305,580.59-21,121,722.78-8,336,285.42

Finding the Fourth Proportional to 15,305,580.59, 21,121,722.78 and 8,336,285.42

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Solution

The fourth proportional to 15,305,580.59, 21,121,722.78 and 8,336,285.42 is: 11,504,085.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,305,580.59 : 21,121,722.78 = 8,336,285.42 : x
  2. Step 2: Convert to fraction form
    15,305,580.59/21,121,722.78 = 8,336,285.42/x
  3. Step 3: Cross multiply
    15,305,580.59x = 21,121,722.78 × 8,336,285.42
  4. Step 4: Simplify right side
    15,305,580.59x = 176,076,709,656,195.88
  5. Step 5: Solve for x
    x = 176,076,709,656,195.88/15,305,580.59
  6. Step 6: Final answer
    x = 11,504,085.63

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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.