Home / 818,170,971.30-1,227,256,473.09-196,386,203.28

Finding the Fourth Proportional to 818,170,971.30, 1,227,256,473.09 and 196,386,203.28

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Solution

The fourth proportional to 818,170,971.30, 1,227,256,473.09 and 196,386,203.28 is: 294,579,308.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,170,971.30 : 1,227,256,473.09 = 196,386,203.28 : x
  2. Step 2: Convert to fraction form
    818,170,971.30/1,227,256,473.09 = 196,386,203.28/x
  3. Step 3: Cross multiply
    818,170,971.30x = 1,227,256,473.09 × 196,386,203.28
  4. Step 4: Simplify right side
    818,170,971.30x = 241,016,239,200,948,576
  5. Step 5: Solve for x
    x = 241,016,239,200,948,576/818,170,971.30
  6. Step 6: Final answer
    x = 294,579,308.79

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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.