Home / 12,099,281.80-18,148,922.70-11,091,512.20

Finding the Fourth Proportional to 12,099,281.80, 18,148,922.70 and 11,091,512.20

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Solution

The fourth proportional to 12,099,281.80, 18,148,922.70 and 11,091,512.20 is: 16,637,268.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,099,281.80 : 18,148,922.70 = 11,091,512.20 : x
  2. Step 2: Convert to fraction form
    12,099,281.80/18,148,922.70 = 11,091,512.20/x
  3. Step 3: Cross multiply
    12,099,281.80x = 18,148,922.70 × 11,091,512.20
  4. Step 4: Simplify right side
    12,099,281.80x = 201,298,997,543,906.91
  5. Step 5: Solve for x
    x = 201,298,997,543,906.91/12,099,281.80
  6. Step 6: Final answer
    x = 16,637,268.30

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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.