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Finding the Fourth Proportional to 106,346,978.56, 146,770,508.67 and 61,702,785.28

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Solution

The fourth proportional to 106,346,978.56, 146,770,508.67 and 61,702,785.28 is: 85,156,619.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,346,978.56 : 146,770,508.67 = 61,702,785.28 : x
  2. Step 2: Convert to fraction form
    106,346,978.56/146,770,508.67 = 61,702,785.28/x
  3. Step 3: Cross multiply
    106,346,978.56x = 146,770,508.67 × 61,702,785.28
  4. Step 4: Simplify right side
    106,346,978.56x = 9,056,149,181,167,534
  5. Step 5: Solve for x
    x = 9,056,149,181,167,534/106,346,978.56
  6. Step 6: Final answer
    x = 85,156,619.44

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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.