Home / 66,821,811.20-100,232,716.80-53,384,883.20

Finding the Fourth Proportional to 66,821,811.20, 100,232,716.80 and 53,384,883.20

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Solution

The fourth proportional to 66,821,811.20, 100,232,716.80 and 53,384,883.20 is: 80,077,324.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,821,811.20 : 100,232,716.80 = 53,384,883.20 : x
  2. Step 2: Convert to fraction form
    66,821,811.20/100,232,716.80 = 53,384,883.20/x
  3. Step 3: Cross multiply
    66,821,811.20x = 100,232,716.80 × 53,384,883.20
  4. Step 4: Simplify right side
    66,821,811.20x = 5,350,911,879,186,678
  5. Step 5: Solve for x
    x = 5,350,911,879,186,678/66,821,811.20
  6. Step 6: Final answer
    x = 80,077,324.80

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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.