Home / 13,857,027.80-20,785,541.70-12,439,851.80

Finding the Fourth Proportional to 13,857,027.80, 20,785,541.70 and 12,439,851.80

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Solution

The fourth proportional to 13,857,027.80, 20,785,541.70 and 12,439,851.80 is: 18,659,777.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,857,027.80 : 20,785,541.70 = 12,439,851.80 : x
  2. Step 2: Convert to fraction form
    13,857,027.80/20,785,541.70 = 12,439,851.80/x
  3. Step 3: Cross multiply
    13,857,027.80x = 20,785,541.70 × 12,439,851.80
  4. Step 4: Simplify right side
    13,857,027.80x = 258,569,058,330,720.06
  5. Step 5: Solve for x
    x = 258,569,058,330,720.06/13,857,027.80
  6. Step 6: Final answer
    x = 18,659,777.70

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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.