Home / 426,964,488.48-640,321,093.68-193,660,227.36

Finding the Fourth Proportional to 426,964,488.48, 640,321,093.68 and 193,660,227.36

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Solution

The fourth proportional to 426,964,488.48, 640,321,093.68 and 193,660,227.36 is: 290,433,354.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,964,488.48 : 640,321,093.68 = 193,660,227.36 : x
  2. Step 2: Convert to fraction form
    426,964,488.48/640,321,093.68 = 193,660,227.36/x
  3. Step 3: Cross multiply
    426,964,488.48x = 640,321,093.68 × 193,660,227.36
  4. Step 4: Simplify right side
    426,964,488.48x = 124,004,728,585,472,656
  5. Step 5: Solve for x
    x = 124,004,728,585,472,656/426,964,488.48
  6. Step 6: Final answer
    x = 290,433,354.37

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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.