Home / 20,856,643.83-28,781,165.63-11,564,591.54

Finding the Fourth Proportional to 20,856,643.83, 28,781,165.63 and 11,564,591.54

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Solution

The fourth proportional to 20,856,643.83, 28,781,165.63 and 11,564,591.54 is: 15,958,580.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,856,643.83 : 28,781,165.63 = 11,564,591.54 : x
  2. Step 2: Convert to fraction form
    20,856,643.83/28,781,165.63 = 11,564,591.54/x
  3. Step 3: Cross multiply
    20,856,643.83x = 28,781,165.63 × 11,564,591.54
  4. Step 4: Simplify right side
    20,856,643.83x = 332,842,424,441,042.44
  5. Step 5: Solve for x
    x = 332,842,424,441,042.44/20,856,643.83
  6. Step 6: Final answer
    x = 15,958,580.26

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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.