Home / 484,499,986.20-726,749,979.30-280,426,642.20

Finding the Fourth Proportional to 484,499,986.20, 726,749,979.30 and 280,426,642.20

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Solution

The fourth proportional to 484,499,986.20, 726,749,979.30 and 280,426,642.20 is: 420,639,963.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,499,986.20 : 726,749,979.30 = 280,426,642.20 : x
  2. Step 2: Convert to fraction form
    484,499,986.20/726,749,979.30 = 280,426,642.20/x
  3. Step 3: Cross multiply
    484,499,986.20x = 726,749,979.30 × 280,426,642.20
  4. Step 4: Simplify right side
    484,499,986.20x = 203,800,056,414,018,496
  5. Step 5: Solve for x
    x = 203,800,056,414,018,496/484,499,986.20
  6. Step 6: Final answer
    x = 420,639,963.30

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1.5x scale

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.