Home / 12,978,447,391.32-19,467,458,346.36-4,135,166,114.44

Finding the Fourth Proportional to 12,978,447,391.32, 19,467,458,346.36 and 4,135,166,114.44

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Solution

The fourth proportional to 12,978,447,391.32, 19,467,458,346.36 and 4,135,166,114.44 is: 6,202,681,388.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,978,447,391.32 : 19,467,458,346.36 = 4,135,166,114.44 : x
  2. Step 2: Convert to fraction form
    12,978,447,391.32/19,467,458,346.36 = 4,135,166,114.44/x
  3. Step 3: Cross multiply
    12,978,447,391.32x = 19,467,458,346.36 × 4,135,166,114.44
  4. Step 4: Simplify right side
    12,978,447,391.32x = 80,501,174,088,140,029,952
  5. Step 5: Solve for x
    x = 80,501,174,088,140,029,952/12,978,447,391.32
  6. Step 6: Final answer
    x = 6,202,681,388.68

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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.