Home / 13,206,462.40-19,809,693.60-12,072,721.60

Finding the Fourth Proportional to 13,206,462.40, 19,809,693.60 and 12,072,721.60

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Solution

The fourth proportional to 13,206,462.40, 19,809,693.60 and 12,072,721.60 is: 18,109,082.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,206,462.40 : 19,809,693.60 = 12,072,721.60 : x
  2. Step 2: Convert to fraction form
    13,206,462.40/19,809,693.60 = 12,072,721.60/x
  3. Step 3: Cross multiply
    13,206,462.40x = 19,809,693.60 × 12,072,721.60
  4. Step 4: Simplify right side
    13,206,462.40x = 239,156,915,814,101.78
  5. Step 5: Solve for x
    x = 239,156,915,814,101.78/13,206,462.40
  6. Step 6: Final answer
    x = 18,109,082.40

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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.