Home / 144,489,703.45-199,395,921.13-78,410,202.35

Finding the Fourth Proportional to 144,489,703.45, 199,395,921.13 and 78,410,202.35

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Solution

The fourth proportional to 144,489,703.45, 199,395,921.13 and 78,410,202.35 is: 108,206,149.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,489,703.45 : 199,395,921.13 = 78,410,202.35 : x
  2. Step 2: Convert to fraction form
    144,489,703.45/199,395,921.13 = 78,410,202.35/x
  3. Step 3: Cross multiply
    144,489,703.45x = 199,395,921.13 × 78,410,202.35
  4. Step 4: Simplify right side
    144,489,703.45x = 15,634,674,523,175,888
  5. Step 5: Solve for x
    x = 15,634,674,523,175,888/144,489,703.45
  6. Step 6: Final answer
    x = 108,206,149.99

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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.