Home / 144,520,579.26-199,435,896.90-78,439,659.30

Finding the Fourth Proportional to 144,520,579.26, 199,435,896.90 and 78,439,659.30

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Solution

The fourth proportional to 144,520,579.26, 199,435,896.90 and 78,439,659.30 is: 108,245,371.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,520,579.26 : 199,435,896.90 = 78,439,659.30 : x
  2. Step 2: Convert to fraction form
    144,520,579.26/199,435,896.90 = 78,439,659.30/x
  3. Step 3: Cross multiply
    144,520,579.26x = 199,435,896.90 × 78,439,659.30
  4. Step 4: Simplify right side
    144,520,579.26x = 15,643,683,805,025,926
  5. Step 5: Solve for x
    x = 15,643,683,805,025,926/144,520,579.26
  6. Step 6: Final answer
    x = 108,245,371.59

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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.