Home / 51,711,781.21-71,362,739.43-28,507,738.55

Finding the Fourth Proportional to 51,711,781.21, 71,362,739.43 and 28,507,738.55

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Solution

The fourth proportional to 51,711,781.21, 71,362,739.43 and 28,507,738.55 is: 39,340,944.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,711,781.21 : 71,362,739.43 = 28,507,738.55 : x
  2. Step 2: Convert to fraction form
    51,711,781.21/71,362,739.43 = 28,507,738.55/x
  3. Step 3: Cross multiply
    51,711,781.21x = 71,362,739.43 × 28,507,738.55
  4. Step 4: Simplify right side
    51,711,781.21x = 2,034,390,317,525,402.75
  5. Step 5: Solve for x
    x = 2,034,390,317,525,402.75/51,711,781.21
  6. Step 6: Final answer
    x = 39,340,944.56

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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.