Home / 12,607,540.40-18,911,310.60-11,119,505.60

Finding the Fourth Proportional to 12,607,540.40, 18,911,310.60 and 11,119,505.60

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Solution

The fourth proportional to 12,607,540.40, 18,911,310.60 and 11,119,505.60 is: 16,679,258.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,607,540.40 : 18,911,310.60 = 11,119,505.60 : x
  2. Step 2: Convert to fraction form
    12,607,540.40/18,911,310.60 = 11,119,505.60/x
  3. Step 3: Cross multiply
    12,607,540.40x = 18,911,310.60 × 11,119,505.60
  4. Step 4: Simplify right side
    12,607,540.40x = 210,284,424,120,039.38
  5. Step 5: Solve for x
    x = 210,284,424,120,039.38/12,607,540.40
  6. Step 6: Final answer
    x = 16,679,258.40

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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.