Home / 19,324,813.80-29,043,207.90-18,988,890.60

Finding the Fourth Proportional to 19,324,813.80, 29,043,207.90 and 18,988,890.60

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Solution

The fourth proportional to 19,324,813.80, 29,043,207.90 and 18,988,890.60 is: 28,538,349.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,324,813.80 : 29,043,207.90 = 18,988,890.60 : x
  2. Step 2: Convert to fraction form
    19,324,813.80/29,043,207.90 = 18,988,890.60/x
  3. Step 3: Cross multiply
    19,324,813.80x = 29,043,207.90 × 18,988,890.60
  4. Step 4: Simplify right side
    19,324,813.80x = 551,498,297,486,155.75
  5. Step 5: Solve for x
    x = 551,498,297,486,155.75/19,324,813.80
  6. Step 6: Final answer
    x = 28,538,349.87

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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.