Home / 20,089,510.76-27,729,424.86-13,121,253.54

Finding the Fourth Proportional to 20,089,510.76, 27,729,424.86 and 13,121,253.54

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Solution

The fourth proportional to 20,089,510.76, 27,729,424.86 and 13,121,253.54 is: 18,111,183.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,089,510.76 : 27,729,424.86 = 13,121,253.54 : x
  2. Step 2: Convert to fraction form
    20,089,510.76/27,729,424.86 = 13,121,253.54/x
  3. Step 3: Cross multiply
    20,089,510.76x = 27,729,424.86 × 13,121,253.54
  4. Step 4: Simplify right side
    20,089,510.76x = 363,844,814,106,439
  5. Step 5: Solve for x
    x = 363,844,814,106,439/20,089,510.76
  6. Step 6: Final answer
    x = 18,111,183.42

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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.