Home / 4,789,914.81-7,185,972.48-1,378,229.68

Finding the Fourth Proportional to 4,789,914.81, 7,185,972.48 and 1,378,229.68

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Solution

The fourth proportional to 4,789,914.81, 7,185,972.48 and 1,378,229.68 is: 2,067,661.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,789,914.81 : 7,185,972.48 = 1,378,229.68 : x
  2. Step 2: Convert to fraction form
    4,789,914.81/7,185,972.48 = 1,378,229.68/x
  3. Step 3: Cross multiply
    4,789,914.81x = 7,185,972.48 × 1,378,229.68
  4. Step 4: Simplify right side
    4,789,914.81x = 9,903,920,551,599.21
  5. Step 5: Solve for x
    x = 9,903,920,551,599.21/4,789,914.81
  6. Step 6: Final answer
    x = 2,067,661.11

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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.