Home / 12,446,530.80-18,669,796.20-2,990,914.80

Finding the Fourth Proportional to 12,446,530.80, 18,669,796.20 and 2,990,914.80

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Solution

The fourth proportional to 12,446,530.80, 18,669,796.20 and 2,990,914.80 is: 4,486,372.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,446,530.80 : 18,669,796.20 = 2,990,914.80 : x
  2. Step 2: Convert to fraction form
    12,446,530.80/18,669,796.20 = 2,990,914.80/x
  3. Step 3: Cross multiply
    12,446,530.80x = 18,669,796.20 × 2,990,914.80
  4. Step 4: Simplify right side
    12,446,530.80x = 55,839,769,767,563.76
  5. Step 5: Solve for x
    x = 55,839,769,767,563.76/12,446,530.80
  6. Step 6: Final answer
    x = 4,486,372.20

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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.