Home / 18,709,601.84-28,059,531.22-7,921,349.54

Finding the Fourth Proportional to 18,709,601.84, 28,059,531.22 and 7,921,349.54

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Solution

The fourth proportional to 18,709,601.84, 28,059,531.22 and 7,921,349.54 is: 11,879,961.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,709,601.84 : 28,059,531.22 = 7,921,349.54 : x
  2. Step 2: Convert to fraction form
    18,709,601.84/28,059,531.22 = 7,921,349.54/x
  3. Step 3: Cross multiply
    18,709,601.84x = 28,059,531.22 × 7,921,349.54
  4. Step 4: Simplify right side
    18,709,601.84x = 222,269,354,652,432.31
  5. Step 5: Solve for x
    x = 222,269,354,652,432.31/18,709,601.84
  6. Step 6: Final answer
    x = 11,879,961.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.