Home / 512,813,892.40-769,220,838.60-149,320,106.80

Finding the Fourth Proportional to 512,813,892.40, 769,220,838.60 and 149,320,106.80

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Solution

The fourth proportional to 512,813,892.40, 769,220,838.60 and 149,320,106.80 is: 223,980,160.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,813,892.40 : 769,220,838.60 = 149,320,106.80 : x
  2. Step 2: Convert to fraction form
    512,813,892.40/769,220,838.60 = 149,320,106.80/x
  3. Step 3: Cross multiply
    512,813,892.40x = 769,220,838.60 × 149,320,106.80
  4. Step 4: Simplify right side
    512,813,892.40x = 114,860,137,772,537,568
  5. Step 5: Solve for x
    x = 114,860,137,772,537,568/512,813,892.40
  6. Step 6: Final answer
    x = 223,980,160.20

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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.