Home / 112,295,219.20-168,442,828.80-68,646,198.40

Finding the Fourth Proportional to 112,295,219.20, 168,442,828.80 and 68,646,198.40

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Solution

The fourth proportional to 112,295,219.20, 168,442,828.80 and 68,646,198.40 is: 102,969,297.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,295,219.20 : 168,442,828.80 = 68,646,198.40 : x
  2. Step 2: Convert to fraction form
    112,295,219.20/168,442,828.80 = 68,646,198.40/x
  3. Step 3: Cross multiply
    112,295,219.20x = 168,442,828.80 × 68,646,198.40
  4. Step 4: Simplify right side
    112,295,219.20x = 11,562,959,844,862,036
  5. Step 5: Solve for x
    x = 11,562,959,844,862,036/112,295,219.20
  6. Step 6: Final answer
    x = 102,969,297.60

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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.