Home / 3,138,725.30-4,331,913.65-1,915,741.51

Finding the Fourth Proportional to 3,138,725.30, 4,331,913.65 and 1,915,741.51

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Solution

The fourth proportional to 3,138,725.30, 4,331,913.65 and 1,915,741.51 is: 2,644,011.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138,725.30 : 4,331,913.65 = 1,915,741.51 : x
  2. Step 2: Convert to fraction form
    3,138,725.30/4,331,913.65 = 1,915,741.51/x
  3. Step 3: Cross multiply
    3,138,725.30x = 4,331,913.65 × 1,915,741.51
  4. Step 4: Simplify right side
    3,138,725.30x = 8,298,826,783,816.15
  5. Step 5: Solve for x
    x = 8,298,826,783,816.15/3,138,725.30
  6. Step 6: Final answer
    x = 2,644,011.82

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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.