Home / 1,188,348,819.37-1,782,728,688.77-401,408,203.03

Finding the Fourth Proportional to 1,188,348,819.37, 1,782,728,688.77 and 401,408,203.03

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Solution

The fourth proportional to 1,188,348,819.37, 1,782,728,688.77 and 401,408,203.03 is: 602,181,706.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,348,819.37 : 1,782,728,688.77 = 401,408,203.03 : x
  2. Step 2: Convert to fraction form
    1,188,348,819.37/1,782,728,688.77 = 401,408,203.03/x
  3. Step 3: Cross multiply
    1,188,348,819.37x = 1,782,728,688.77 × 401,408,203.03
  4. Step 4: Simplify right side
    1,188,348,819.37x = 715,601,919,449,193,728
  5. Step 5: Solve for x
    x = 715,601,919,449,193,728/1,188,348,819.37
  6. Step 6: Final answer
    x = 602,181,706.07

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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.