Home / 804,680,668.80-1,206,722,404.80-319,906,166.40

Finding the Fourth Proportional to 804,680,668.80, 1,206,722,404.80 and 319,906,166.40

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Solution

The fourth proportional to 804,680,668.80, 1,206,722,404.80 and 319,906,166.40 is: 479,740,539.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,680,668.80 : 1,206,722,404.80 = 319,906,166.40 : x
  2. Step 2: Convert to fraction form
    804,680,668.80/1,206,722,404.80 = 319,906,166.40/x
  3. Step 3: Cross multiply
    804,680,668.80x = 1,206,722,404.80 × 319,906,166.40
  4. Step 4: Simplify right side
    804,680,668.80x = 386,037,938,428,556,928
  5. Step 5: Solve for x
    x = 386,037,938,428,556,928/804,680,668.80
  6. Step 6: Final answer
    x = 479,740,539.81

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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.