Home / 20,705,771.96-28,575,243.70-11,413,321.07

Finding the Fourth Proportional to 20,705,771.96, 28,575,243.70 and 11,413,321.07

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Solution

The fourth proportional to 20,705,771.96, 28,575,243.70 and 11,413,321.07 is: 15,751,087.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,705,771.96 : 28,575,243.70 = 11,413,321.07 : x
  2. Step 2: Convert to fraction form
    20,705,771.96/28,575,243.70 = 11,413,321.07/x
  3. Step 3: Cross multiply
    20,705,771.96x = 28,575,243.70 × 11,413,321.07
  4. Step 4: Simplify right side
    20,705,771.96x = 326,138,430,830,185.25
  5. Step 5: Solve for x
    x = 326,138,430,830,185.25/20,705,771.96
  6. Step 6: Final answer
    x = 15,751,087.74

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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.