Home / 20,393,593.75-28,089,548.54-15,674,965.75

Finding the Fourth Proportional to 20,393,593.75, 28,089,548.54 and 15,674,965.75

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Solution

The fourth proportional to 20,393,593.75, 28,089,548.54 and 15,674,965.75 is: 21,590,246.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,393,593.75 : 28,089,548.54 = 15,674,965.75 : x
  2. Step 2: Convert to fraction form
    20,393,593.75/28,089,548.54 = 15,674,965.75/x
  3. Step 3: Cross multiply
    20,393,593.75x = 28,089,548.54 × 15,674,965.75
  4. Step 4: Simplify right side
    20,393,593.75x = 440,302,711,219,087.69
  5. Step 5: Solve for x
    x = 440,302,711,219,087.69/20,393,593.75
  6. Step 6: Final answer
    x = 21,590,246.26

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1.5x scale

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.