Home / 13,146,961.80-19,720,442.70-11,971,230.60

Finding the Fourth Proportional to 13,146,961.80, 19,720,442.70 and 11,971,230.60

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Solution

The fourth proportional to 13,146,961.80, 19,720,442.70 and 11,971,230.60 is: 17,956,845.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,146,961.80 : 19,720,442.70 = 11,971,230.60 : x
  2. Step 2: Convert to fraction form
    13,146,961.80/19,720,442.70 = 11,971,230.60/x
  3. Step 3: Cross multiply
    13,146,961.80x = 19,720,442.70 × 11,971,230.60
  4. Step 4: Simplify right side
    13,146,961.80x = 236,077,967,095,786.59
  5. Step 5: Solve for x
    x = 236,077,967,095,786.59/13,146,961.80
  6. Step 6: Final answer
    x = 17,956,845.90

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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.