Home / 10,780,980.60-16,171,470.90-7,946,628.60

Finding the Fourth Proportional to 10,780,980.60, 16,171,470.90 and 7,946,628.60

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Solution

The fourth proportional to 10,780,980.60, 16,171,470.90 and 7,946,628.60 is: 11,919,942.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,780,980.60 : 16,171,470.90 = 7,946,628.60 : x
  2. Step 2: Convert to fraction form
    10,780,980.60/16,171,470.90 = 7,946,628.60/x
  3. Step 3: Cross multiply
    10,780,980.60x = 16,171,470.90 × 7,946,628.60
  4. Step 4: Simplify right side
    10,780,980.60x = 128,508,673,158,007.73
  5. Step 5: Solve for x
    x = 128,508,673,158,007.73/10,780,980.60
  6. Step 6: Final answer
    x = 11,919,942.90

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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.