Home / 20,571,233.92-28,388,152.01-11,278,650.82

Finding the Fourth Proportional to 20,571,233.92, 28,388,152.01 and 11,278,650.82

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Solution

The fourth proportional to 20,571,233.92, 28,388,152.01 and 11,278,650.82 is: 15,564,455.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,571,233.92 : 28,388,152.01 = 11,278,650.82 : x
  2. Step 2: Convert to fraction form
    20,571,233.92/28,388,152.01 = 11,278,650.82/x
  3. Step 3: Cross multiply
    20,571,233.92x = 28,388,152.01 × 11,278,650.82
  4. Step 4: Simplify right side
    20,571,233.92x = 320,180,053,956,325.19
  5. Step 5: Solve for x
    x = 320,180,053,956,325.19/20,571,233.92
  6. Step 6: Final answer
    x = 15,564,455.45

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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.