Home / 144,489,702.20-199,395,919.40-78,410,201.10

Finding the Fourth Proportional to 144,489,702.20, 199,395,919.40 and 78,410,201.10

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Solution

The fourth proportional to 144,489,702.20, 199,395,919.40 and 78,410,201.10 is: 108,206,148.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,489,702.20 : 199,395,919.40 = 78,410,201.10 : x
  2. Step 2: Convert to fraction form
    144,489,702.20/199,395,919.40 = 78,410,201.10/x
  3. Step 3: Cross multiply
    144,489,702.20x = 199,395,919.40 × 78,410,201.10
  4. Step 4: Simplify right side
    144,489,702.20x = 15,634,674,138,673,390
  5. Step 5: Solve for x
    x = 15,634,674,138,673,390/144,489,702.20
  6. Step 6: Final answer
    x = 108,206,148.26

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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.