Home / 19,118,980.78-28,691,716.02-7,603,268.02

Finding the Fourth Proportional to 19,118,980.78, 28,691,716.02 and 7,603,268.02

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Solution

The fourth proportional to 19,118,980.78, 28,691,716.02 and 7,603,268.02 is: 11,410,169.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,118,980.78 : 28,691,716.02 = 7,603,268.02 : x
  2. Step 2: Convert to fraction form
    19,118,980.78/28,691,716.02 = 7,603,268.02/x
  3. Step 3: Cross multiply
    19,118,980.78x = 28,691,716.02 × 7,603,268.02
  4. Step 4: Simplify right side
    19,118,980.78x = 218,150,806,853,787.66
  5. Step 5: Solve for x
    x = 218,150,806,853,787.66/19,118,980.78
  6. Step 6: Final answer
    x = 11,410,169.26

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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.