Home / 3,913,689.20-5,870,533.80-2,638,230.80

Finding the Fourth Proportional to 3,913,689.20, 5,870,533.80 and 2,638,230.80

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Solution

The fourth proportional to 3,913,689.20, 5,870,533.80 and 2,638,230.80 is: 3,957,346.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,913,689.20 : 5,870,533.80 = 2,638,230.80 : x
  2. Step 2: Convert to fraction form
    3,913,689.20/5,870,533.80 = 2,638,230.80/x
  3. Step 3: Cross multiply
    3,913,689.20x = 5,870,533.80 × 2,638,230.80
  4. Step 4: Simplify right side
    3,913,689.20x = 15,487,823,083,601.04
  5. Step 5: Solve for x
    x = 15,487,823,083,601.04/3,913,689.20
  6. Step 6: Final answer
    x = 3,957,346.20

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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.