Home / 12,783,645.60-19,166,137.20-5,206,711.20

Finding the Fourth Proportional to 12,783,645.60, 19,166,137.20 and 5,206,711.20

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Solution

The fourth proportional to 12,783,645.60, 19,166,137.20 and 5,206,711.20 is: 7,806,266.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,783,645.60 : 19,166,137.20 = 5,206,711.20 : x
  2. Step 2: Convert to fraction form
    12,783,645.60/19,166,137.20 = 5,206,711.20/x
  3. Step 3: Cross multiply
    12,783,645.60x = 19,166,137.20 × 5,206,711.20
  4. Step 4: Simplify right side
    12,783,645.60x = 99,792,541,219,976.64
  5. Step 5: Solve for x
    x = 99,792,541,219,976.64/12,783,645.60
  6. Step 6: Final answer
    x = 7,806,266.25

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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.