Home / 15,113,505.17-20,856,844.37-8,237,972.45

Finding the Fourth Proportional to 15,113,505.17, 20,856,844.37 and 8,237,972.45

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Solution

The fourth proportional to 15,113,505.17, 20,856,844.37 and 8,237,972.45 is: 11,368,514.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,113,505.17 : 20,856,844.37 = 8,237,972.45 : x
  2. Step 2: Convert to fraction form
    15,113,505.17/20,856,844.37 = 8,237,972.45/x
  3. Step 3: Cross multiply
    15,113,505.17x = 20,856,844.37 × 8,237,972.45
  4. Step 4: Simplify right side
    15,113,505.17x = 171,818,109,313,997.62
  5. Step 5: Solve for x
    x = 171,818,109,313,997.62/15,113,505.17
  6. Step 6: Final answer
    x = 11,368,514.94

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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.