Home / 512,813,816.40-769,220,724.60-149,320,030.80

Finding the Fourth Proportional to 512,813,816.40, 769,220,724.60 and 149,320,030.80

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Solution

The fourth proportional to 512,813,816.40, 769,220,724.60 and 149,320,030.80 is: 223,980,046.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,813,816.40 : 769,220,724.60 = 149,320,030.80 : x
  2. Step 2: Convert to fraction form
    512,813,816.40/769,220,724.60 = 149,320,030.80/x
  3. Step 3: Cross multiply
    512,813,816.40x = 769,220,724.60 × 149,320,030.80
  4. Step 4: Simplify right side
    512,813,816.40x = 114,860,062,289,270,336
  5. Step 5: Solve for x
    x = 114,860,062,289,270,336/512,813,816.40
  6. Step 6: Final answer
    x = 223,980,046.20

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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.