Home / 1,311,563,578.80-1,968,101,195.40-494,262,433.20

Finding the Fourth Proportional to 1,311,563,578.80, 1,968,101,195.40 and 494,262,433.20

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Solution

The fourth proportional to 1,311,563,578.80, 1,968,101,195.40 and 494,262,433.20 is: 741,678,483.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,563,578.80 : 1,968,101,195.40 = 494,262,433.20 : x
  2. Step 2: Convert to fraction form
    1,311,563,578.80/1,968,101,195.40 = 494,262,433.20/x
  3. Step 3: Cross multiply
    1,311,563,578.80x = 1,968,101,195.40 × 494,262,433.20
  4. Step 4: Simplify right side
    1,311,563,578.80x = 972,758,485,622,232,704
  5. Step 5: Solve for x
    x = 972,758,485,622,232,704/1,311,563,578.80
  6. Step 6: Final answer
    x = 741,678,483.11

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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.