Home / 10,807,211.60-16,171,451.40-7,972,859.60

Finding the Fourth Proportional to 10,807,211.60, 16,171,451.40 and 7,972,859.60

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Solution

The fourth proportional to 10,807,211.60, 16,171,451.40 and 7,972,859.60 is: 11,930,247.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,807,211.60 : 16,171,451.40 = 7,972,859.60 : x
  2. Step 2: Convert to fraction form
    10,807,211.60/16,171,451.40 = 7,972,859.60/x
  3. Step 3: Cross multiply
    10,807,211.60x = 16,171,451.40 × 7,972,859.60
  4. Step 4: Simplify right side
    10,807,211.60x = 128,932,711,540,423.44
  5. Step 5: Solve for x
    x = 128,932,711,540,423.44/10,807,211.60
  6. Step 6: Final answer
    x = 11,930,247.72

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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.