Home / 12,100,012.40-18,134,077.80-8,890,079.60

Finding the Fourth Proportional to 12,100,012.40, 18,134,077.80 and 8,890,079.60

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Solution

The fourth proportional to 12,100,012.40, 18,134,077.80 and 8,890,079.60 is: 13,323,407.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,100,012.40 : 18,134,077.80 = 8,890,079.60 : x
  2. Step 2: Convert to fraction form
    12,100,012.40/18,134,077.80 = 8,890,079.60/x
  3. Step 3: Cross multiply
    12,100,012.40x = 18,134,077.80 × 8,890,079.60
  4. Step 4: Simplify right side
    12,100,012.40x = 161,213,395,114,592.88
  5. Step 5: Solve for x
    x = 161,213,395,114,592.88/12,100,012.40
  6. Step 6: Final answer
    x = 13,323,407.43

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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.