Home / 776,628,375.40-1,164,942,563.10-486,390,730.60

Finding the Fourth Proportional to 776,628,375.40, 1,164,942,563.10 and 486,390,730.60

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Solution

The fourth proportional to 776,628,375.40, 1,164,942,563.10 and 486,390,730.60 is: 729,586,095.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,628,375.40 : 1,164,942,563.10 = 486,390,730.60 : x
  2. Step 2: Convert to fraction form
    776,628,375.40/1,164,942,563.10 = 486,390,730.60/x
  3. Step 3: Cross multiply
    776,628,375.40x = 1,164,942,563.10 × 486,390,730.60
  4. Step 4: Simplify right side
    776,628,375.40x = 566,617,264,373,245,568
  5. Step 5: Solve for x
    x = 566,617,264,373,245,568/776,628,375.40
  6. Step 6: Final answer
    x = 729,586,095.90

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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.