Home / 30,416,273.99-45,548,742.39-21,275,571.81

Finding the Fourth Proportional to 30,416,273.99, 45,548,742.39 and 21,275,571.81

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Solution

The fourth proportional to 30,416,273.99, 45,548,742.39 and 21,275,571.81 is: 31,860,429.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,416,273.99 : 45,548,742.39 = 21,275,571.81 : x
  2. Step 2: Convert to fraction form
    30,416,273.99/45,548,742.39 = 21,275,571.81/x
  3. Step 3: Cross multiply
    30,416,273.99x = 45,548,742.39 × 21,275,571.81
  4. Step 4: Simplify right side
    30,416,273.99x = 969,075,539,664,660.25
  5. Step 5: Solve for x
    x = 969,075,539,664,660.25/30,416,273.99
  6. Step 6: Final answer
    x = 31,860,429.06

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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.