Home / 15,180,898.80-20,949,876.54-8,305,495.68

Finding the Fourth Proportional to 15,180,898.80, 20,949,876.54 and 8,305,495.68

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Solution

The fourth proportional to 15,180,898.80, 20,949,876.54 and 8,305,495.68 is: 11,461,713.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,180,898.80 : 20,949,876.54 = 8,305,495.68 : x
  2. Step 2: Convert to fraction form
    15,180,898.80/20,949,876.54 = 8,305,495.68/x
  3. Step 3: Cross multiply
    15,180,898.80x = 20,949,876.54 × 8,305,495.68
  4. Step 4: Simplify right side
    15,180,898.80x = 173,999,109,099,503.34
  5. Step 5: Solve for x
    x = 173,999,109,099,503.34/15,180,898.80
  6. Step 6: Final answer
    x = 11,461,713.26

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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.