Home / 13,729,899.78-18,947,261.64-7,619,311.62

Finding the Fourth Proportional to 13,729,899.78, 18,947,261.64 and 7,619,311.62

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Solution

The fourth proportional to 13,729,899.78, 18,947,261.64 and 7,619,311.62 is: 10,514,650.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,729,899.78 : 18,947,261.64 = 7,619,311.62 : x
  2. Step 2: Convert to fraction form
    13,729,899.78/18,947,261.64 = 7,619,311.62/x
  3. Step 3: Cross multiply
    13,729,899.78x = 18,947,261.64 × 7,619,311.62
  4. Step 4: Simplify right side
    13,729,899.78x = 144,365,090,780,832.25
  5. Step 5: Solve for x
    x = 144,365,090,780,832.25/13,729,899.78
  6. Step 6: Final answer
    x = 10,514,650.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.