Home / 336,880,879.90-505,321,319.85-81,579,247.90

Finding the Fourth Proportional to 336,880,879.90, 505,321,319.85 and 81,579,247.90

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Solution

The fourth proportional to 336,880,879.90, 505,321,319.85 and 81,579,247.90 is: 122,368,871.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,880,879.90 : 505,321,319.85 = 81,579,247.90 : x
  2. Step 2: Convert to fraction form
    336,880,879.90/505,321,319.85 = 81,579,247.90/x
  3. Step 3: Cross multiply
    336,880,879.90x = 505,321,319.85 × 81,579,247.90
  4. Step 4: Simplify right side
    336,880,879.90x = 41,223,733,221,198,344
  5. Step 5: Solve for x
    x = 41,223,733,221,198,344/336,880,879.90
  6. Step 6: Final answer
    x = 122,368,871.85

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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.