Home / 12,780,158.60-19,160,906.70-5,203,224.20

Finding the Fourth Proportional to 12,780,158.60, 19,160,906.70 and 5,203,224.20

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Solution

The fourth proportional to 12,780,158.60, 19,160,906.70 and 5,203,224.20 is: 7,801,037.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,780,158.60 : 19,160,906.70 = 5,203,224.20 : x
  2. Step 2: Convert to fraction form
    12,780,158.60/19,160,906.70 = 5,203,224.20/x
  3. Step 3: Cross multiply
    12,780,158.60x = 19,160,906.70 × 5,203,224.20
  4. Step 4: Simplify right side
    12,780,158.60x = 99,698,493,435,382.14
  5. Step 5: Solve for x
    x = 99,698,493,435,382.14/12,780,158.60
  6. Step 6: Final answer
    x = 7,801,037.26

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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.