Home / 100,939,213.70-151,410,022.05-28,151,565.81

Finding the Fourth Proportional to 100,939,213.70, 151,410,022.05 and 28,151,565.81

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Solution

The fourth proportional to 100,939,213.70, 151,410,022.05 and 28,151,565.81 is: 42,227,683.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,939,213.70 : 151,410,022.05 = 28,151,565.81 : x
  2. Step 2: Convert to fraction form
    100,939,213.70/151,410,022.05 = 28,151,565.81/x
  3. Step 3: Cross multiply
    100,939,213.70x = 151,410,022.05 × 28,151,565.81
  4. Step 4: Simplify right side
    100,939,213.70x = 4,262,429,199,571,907
  5. Step 5: Solve for x
    x = 4,262,429,199,571,907/100,939,213.70
  6. Step 6: Final answer
    x = 42,227,683.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.