Home / 331,336,115.80-497,004,173.70-280,317,779.80

Finding the Fourth Proportional to 331,336,115.80, 497,004,173.70 and 280,317,779.80

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Solution

The fourth proportional to 331,336,115.80, 497,004,173.70 and 280,317,779.80 is: 420,476,669.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,336,115.80 : 497,004,173.70 = 280,317,779.80 : x
  2. Step 2: Convert to fraction form
    331,336,115.80/497,004,173.70 = 280,317,779.80/x
  3. Step 3: Cross multiply
    331,336,115.80x = 497,004,173.70 × 280,317,779.80
  4. Step 4: Simplify right side
    331,336,115.80x = 139,319,106,522,917,552
  5. Step 5: Solve for x
    x = 139,319,106,522,917,552/331,336,115.80
  6. Step 6: Final answer
    x = 420,476,669.70

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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.