Home / 77,003,999.40-115,505,999.10-61,887,455.40

Finding the Fourth Proportional to 77,003,999.40, 115,505,999.10 and 61,887,455.40

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Solution

The fourth proportional to 77,003,999.40, 115,505,999.10 and 61,887,455.40 is: 92,831,183.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,003,999.40 : 115,505,999.10 = 61,887,455.40 : x
  2. Step 2: Convert to fraction form
    77,003,999.40/115,505,999.10 = 61,887,455.40/x
  3. Step 3: Cross multiply
    77,003,999.40x = 115,505,999.10 × 61,887,455.40
  4. Step 4: Simplify right side
    77,003,999.40x = 7,148,372,367,733,690
  5. Step 5: Solve for x
    x = 7,148,372,367,733,690/77,003,999.40
  6. Step 6: Final answer
    x = 92,831,183.10

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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.