Home / 11,328,809.80-16,990,853.10-4,143,728.20

Finding the Fourth Proportional to 11,328,809.80, 16,990,853.10 and 4,143,728.20

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Solution

The fourth proportional to 11,328,809.80, 16,990,853.10 and 4,143,728.20 is: 6,214,728.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,328,809.80 : 16,990,853.10 = 4,143,728.20 : x
  2. Step 2: Convert to fraction form
    11,328,809.80/16,990,853.10 = 4,143,728.20/x
  3. Step 3: Cross multiply
    11,328,809.80x = 16,990,853.10 × 4,143,728.20
  4. Step 4: Simplify right side
    11,328,809.80x = 70,405,477,132,527.42
  5. Step 5: Solve for x
    x = 70,405,477,132,527.42/11,328,809.80
  6. Step 6: Final answer
    x = 6,214,728.50

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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.