Home / 2,976,815.21-4,108,420.44-1,815,139.13

Finding the Fourth Proportional to 2,976,815.21, 4,108,420.44 and 1,815,139.13

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Solution

The fourth proportional to 2,976,815.21, 4,108,420.44 and 1,815,139.13 is: 2,505,145.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,976,815.21 : 4,108,420.44 = 1,815,139.13 : x
  2. Step 2: Convert to fraction form
    2,976,815.21/4,108,420.44 = 1,815,139.13/x
  3. Step 3: Cross multiply
    2,976,815.21x = 4,108,420.44 × 1,815,139.13
  4. Step 4: Simplify right side
    2,976,815.21x = 7,457,354,682,593.72
  5. Step 5: Solve for x
    x = 7,457,354,682,593.72/2,976,815.21
  6. Step 6: Final answer
    x = 2,505,145.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.