Home / 480,639,216.80-720,958,825.20-299,240,688.80

Finding the Fourth Proportional to 480,639,216.80, 720,958,825.20 and 299,240,688.80

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Solution

The fourth proportional to 480,639,216.80, 720,958,825.20 and 299,240,688.80 is: 448,861,033.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,639,216.80 : 720,958,825.20 = 299,240,688.80 : x
  2. Step 2: Convert to fraction form
    480,639,216.80/720,958,825.20 = 299,240,688.80/x
  3. Step 3: Cross multiply
    480,639,216.80x = 720,958,825.20 × 299,240,688.80
  4. Step 4: Simplify right side
    480,639,216.80x = 215,740,215,449,286,816
  5. Step 5: Solve for x
    x = 215,740,215,449,286,816/480,639,216.80
  6. Step 6: Final answer
    x = 448,861,033.20

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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.