Home / 12,778,977.72-17,635,074.66-6,977,799.84

Finding the Fourth Proportional to 12,778,977.72, 17,635,074.66 and 6,977,799.84

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Solution

The fourth proportional to 12,778,977.72, 17,635,074.66 and 6,977,799.84 is: 9,629,410.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,778,977.72 : 17,635,074.66 = 6,977,799.84 : x
  2. Step 2: Convert to fraction form
    12,778,977.72/17,635,074.66 = 6,977,799.84/x
  3. Step 3: Cross multiply
    12,778,977.72x = 17,635,074.66 × 6,977,799.84
  4. Step 4: Simplify right side
    12,778,977.72x = 123,054,021,140,936.05
  5. Step 5: Solve for x
    x = 123,054,021,140,936.05/12,778,977.72
  6. Step 6: Final answer
    x = 9,629,410.41

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.