Home / 20,346,572.21-28,071,325.31-12,608,791.25

Finding the Fourth Proportional to 20,346,572.21, 28,071,325.31 and 12,608,791.25

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Solution

The fourth proportional to 20,346,572.21, 28,071,325.31 and 12,608,791.25 is: 17,395,828.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,346,572.21 : 28,071,325.31 = 12,608,791.25 : x
  2. Step 2: Convert to fraction form
    20,346,572.21/28,071,325.31 = 12,608,791.25/x
  3. Step 3: Cross multiply
    20,346,572.21x = 28,071,325.31 × 12,608,791.25
  4. Step 4: Simplify right side
    20,346,572.21x = 353,945,480,741,230.94
  5. Step 5: Solve for x
    x = 353,945,480,741,230.94/20,346,572.21
  6. Step 6: Final answer
    x = 17,395,828.50

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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.