Home / 15,053,039.78-20,771,528.81-8,347,203.78

Finding the Fourth Proportional to 15,053,039.78, 20,771,528.81 and 8,347,203.78

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Solution

The fourth proportional to 15,053,039.78, 20,771,528.81 and 8,347,203.78 is: 11,518,217.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,053,039.78 : 20,771,528.81 = 8,347,203.78 : x
  2. Step 2: Convert to fraction form
    15,053,039.78/20,771,528.81 = 8,347,203.78/x
  3. Step 3: Cross multiply
    15,053,039.78x = 20,771,528.81 × 8,347,203.78
  4. Step 4: Simplify right side
    15,053,039.78x = 173,384,183,757,474.88
  5. Step 5: Solve for x
    x = 173,384,183,757,474.88/15,053,039.78
  6. Step 6: Final answer
    x = 11,518,217.34

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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.