Home / 3,990,623.80-5,985,935.70-3,927,638.20

Finding the Fourth Proportional to 3,990,623.80, 5,985,935.70 and 3,927,638.20

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Solution

The fourth proportional to 3,990,623.80, 5,985,935.70 and 3,927,638.20 is: 5,891,457.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,990,623.80 : 5,985,935.70 = 3,927,638.20 : x
  2. Step 2: Convert to fraction form
    3,990,623.80/5,985,935.70 = 3,927,638.20/x
  3. Step 3: Cross multiply
    3,990,623.80x = 5,985,935.70 × 3,927,638.20
  4. Step 4: Simplify right side
    3,990,623.80x = 23,510,589,718,063.74
  5. Step 5: Solve for x
    x = 23,510,589,718,063.74/3,990,623.80
  6. Step 6: Final answer
    x = 5,891,457.30

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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.