Home / 20,135,090.54-30,214,778.52-7,180,256.72

Finding the Fourth Proportional to 20,135,090.54, 30,214,778.52 and 7,180,256.72

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Solution

The fourth proportional to 20,135,090.54, 30,214,778.52 and 7,180,256.72 is: 10,774,715.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,135,090.54 : 30,214,778.52 = 7,180,256.72 : x
  2. Step 2: Convert to fraction form
    20,135,090.54/30,214,778.52 = 7,180,256.72/x
  3. Step 3: Cross multiply
    20,135,090.54x = 30,214,778.52 × 7,180,256.72
  4. Step 4: Simplify right side
    20,135,090.54x = 216,949,866,511,541.66
  5. Step 5: Solve for x
    x = 216,949,866,511,541.66/20,135,090.54
  6. Step 6: Final answer
    x = 10,774,715.22

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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.