Home / 398,556,858.58-550,008,700.73-222,344,854.54

Finding the Fourth Proportional to 398,556,858.58, 550,008,700.73 and 222,344,854.54

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Solution

The fourth proportional to 398,556,858.58, 550,008,700.73 and 222,344,854.54 is: 306,836,030.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,556,858.58 : 550,008,700.73 = 222,344,854.54 : x
  2. Step 2: Convert to fraction form
    398,556,858.58/550,008,700.73 = 222,344,854.54/x
  3. Step 3: Cross multiply
    398,556,858.58x = 550,008,700.73 × 222,344,854.54
  4. Step 4: Simplify right side
    398,556,858.58x = 122,291,604,559,546,240
  5. Step 5: Solve for x
    x = 122,291,604,559,546,240/398,556,858.58
  6. Step 6: Final answer
    x = 306,836,030.86

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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.