Home / 331,336,095.30-497,004,142.95-280,317,759.30

Finding the Fourth Proportional to 331,336,095.30, 497,004,142.95 and 280,317,759.30

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Solution

The fourth proportional to 331,336,095.30, 497,004,142.95 and 280,317,759.30 is: 420,476,638.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,336,095.30 : 497,004,142.95 = 280,317,759.30 : x
  2. Step 2: Convert to fraction form
    331,336,095.30/497,004,142.95 = 280,317,759.30/x
  3. Step 3: Cross multiply
    331,336,095.30x = 497,004,142.95 × 280,317,759.30
  4. Step 4: Simplify right side
    331,336,095.30x = 139,319,087,714,560,896
  5. Step 5: Solve for x
    x = 139,319,087,714,560,896/331,336,095.30
  6. Step 6: Final answer
    x = 420,476,638.95

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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.