Home / 20,705,774.21-28,575,246.81-11,413,323.32

Finding the Fourth Proportional to 20,705,774.21, 28,575,246.81 and 11,413,323.32

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Solution

The fourth proportional to 20,705,774.21, 28,575,246.81 and 11,413,323.32 is: 15,751,090.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,705,774.21 : 28,575,246.81 = 11,413,323.32 : x
  2. Step 2: Convert to fraction form
    20,705,774.21/28,575,246.81 = 11,413,323.32/x
  3. Step 3: Cross multiply
    20,705,774.21x = 28,575,246.81 × 11,413,323.32
  4. Step 4: Simplify right side
    20,705,774.21x = 326,138,530,648,452.38
  5. Step 5: Solve for x
    x = 326,138,530,648,452.38/20,705,774.21
  6. Step 6: Final answer
    x = 15,751,090.85

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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.