Home / 3,621,402.61-4,997,840.09-1,990,135.72

Finding the Fourth Proportional to 3,621,402.61, 4,997,840.09 and 1,990,135.72

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Solution

The fourth proportional to 3,621,402.61, 4,997,840.09 and 1,990,135.72 is: 2,746,554.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,621,402.61 : 4,997,840.09 = 1,990,135.72 : x
  2. Step 2: Convert to fraction form
    3,621,402.61/4,997,840.09 = 1,990,135.72/x
  3. Step 3: Cross multiply
    3,621,402.61x = 4,997,840.09 × 1,990,135.72
  4. Step 4: Simplify right side
    3,621,402.61x = 9,946,380,085,957.01
  5. Step 5: Solve for x
    x = 9,946,380,085,957.01/3,621,402.61
  6. Step 6: Final answer
    x = 2,746,554.62

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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.