Home / 72,764,240.40-109,146,360.60-36,378,246.60

Finding the Fourth Proportional to 72,764,240.40, 109,146,360.60 and 36,378,246.60

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Solution

The fourth proportional to 72,764,240.40, 109,146,360.60 and 36,378,246.60 is: 54,567,369.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,764,240.40 : 109,146,360.60 = 36,378,246.60 : x
  2. Step 2: Convert to fraction form
    72,764,240.40/109,146,360.60 = 36,378,246.60/x
  3. Step 3: Cross multiply
    72,764,240.40x = 109,146,360.60 × 36,378,246.60
  4. Step 4: Simplify right side
    72,764,240.40x = 3,970,553,221,399,324
  5. Step 5: Solve for x
    x = 3,970,553,221,399,324/72,764,240.40
  6. Step 6: Final answer
    x = 54,567,369.90

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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.