Home / 220,051,855.20-330,077,782.80-66,677,982.60

Finding the Fourth Proportional to 220,051,855.20, 330,077,782.80 and 66,677,982.60

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Solution

The fourth proportional to 220,051,855.20, 330,077,782.80 and 66,677,982.60 is: 100,016,973.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,051,855.20 : 330,077,782.80 = 66,677,982.60 : x
  2. Step 2: Convert to fraction form
    220,051,855.20/330,077,782.80 = 66,677,982.60/x
  3. Step 3: Cross multiply
    220,051,855.20x = 330,077,782.80 × 66,677,982.60
  4. Step 4: Simplify right side
    220,051,855.20x = 22,008,920,658,184,980
  5. Step 5: Solve for x
    x = 22,008,920,658,184,980/220,051,855.20
  6. Step 6: Final answer
    x = 100,016,973.90

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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.