Home / 280,574,006.80-420,861,010.20-275,791,037.80

Finding the Fourth Proportional to 280,574,006.80, 420,861,010.20 and 275,791,037.80

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Solution

The fourth proportional to 280,574,006.80, 420,861,010.20 and 275,791,037.80 is: 413,686,556.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,574,006.80 : 420,861,010.20 = 275,791,037.80 : x
  2. Step 2: Convert to fraction form
    280,574,006.80/420,861,010.20 = 275,791,037.80/x
  3. Step 3: Cross multiply
    280,574,006.80x = 420,861,010.20 × 275,791,037.80
  4. Step 4: Simplify right side
    280,574,006.80x = 116,069,694,772,614,384
  5. Step 5: Solve for x
    x = 116,069,694,772,614,384/280,574,006.80
  6. Step 6: Final answer
    x = 413,686,556.70

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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.