Home / 77,276,753.60-115,919,099.52-19,769,520.64

Finding the Fourth Proportional to 77,276,753.60, 115,919,099.52 and 19,769,520.64

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Solution

The fourth proportional to 77,276,753.60, 115,919,099.52 and 19,769,520.64 is: 29,655,296.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,276,753.60 : 115,919,099.52 = 19,769,520.64 : x
  2. Step 2: Convert to fraction form
    77,276,753.60/115,919,099.52 = 19,769,520.64/x
  3. Step 3: Cross multiply
    77,276,753.60x = 115,919,099.52 × 19,769,520.64
  4. Step 4: Simplify right side
    77,276,753.60x = 2,291,665,030,530,854
  5. Step 5: Solve for x
    x = 2,291,665,030,530,854/77,276,753.60
  6. Step 6: Final answer
    x = 29,655,296.37

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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.