Home / 280,651,640.70-420,339,731.85-177,339,510.30

Finding the Fourth Proportional to 280,651,640.70, 420,339,731.85 and 177,339,510.30

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Solution

The fourth proportional to 280,651,640.70, 420,339,731.85 and 177,339,510.30 is: 265,606,294.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,651,640.70 : 420,339,731.85 = 177,339,510.30 : x
  2. Step 2: Convert to fraction form
    280,651,640.70/420,339,731.85 = 177,339,510.30/x
  3. Step 3: Cross multiply
    280,651,640.70x = 420,339,731.85 × 177,339,510.30
  4. Step 4: Simplify right side
    280,651,640.70x = 74,542,842,205,912,320
  5. Step 5: Solve for x
    x = 74,542,842,205,912,320/280,651,640.70
  6. Step 6: Final answer
    x = 265,606,294.05

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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.