Home / 20,089,425.56-27,729,307.36-13,121,168.38

Finding the Fourth Proportional to 20,089,425.56, 27,729,307.36 and 13,121,168.38

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Solution

The fourth proportional to 20,089,425.56, 27,729,307.36 and 13,121,168.38 is: 18,111,065.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,089,425.56 : 27,729,307.36 = 13,121,168.38 : x
  2. Step 2: Convert to fraction form
    20,089,425.56/27,729,307.36 = 13,121,168.38/x
  3. Step 3: Cross multiply
    20,089,425.56x = 27,729,307.36 × 13,121,168.38
  4. Step 4: Simplify right side
    20,089,425.56x = 363,840,910,931,333.31
  5. Step 5: Solve for x
    x = 363,840,910,931,333.31/20,089,425.56
  6. Step 6: Final answer
    x = 18,111,065.94

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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.