Home / 15,858,982.72-21,885,549.60-8,615,690.56

Finding the Fourth Proportional to 15,858,982.72, 21,885,549.60 and 8,615,690.56

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Solution

The fourth proportional to 15,858,982.72, 21,885,549.60 and 8,615,690.56 is: 11,889,736.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,858,982.72 : 21,885,549.60 = 8,615,690.56 : x
  2. Step 2: Convert to fraction form
    15,858,982.72/21,885,549.60 = 8,615,690.56/x
  3. Step 3: Cross multiply
    15,858,982.72x = 21,885,549.60 × 8,615,690.56
  4. Step 4: Simplify right side
    15,858,982.72x = 188,559,123,089,131.81
  5. Step 5: Solve for x
    x = 188,559,123,089,131.81/15,858,982.72
  6. Step 6: Final answer
    x = 11,889,736.34

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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.