Home / 893,617,836.61-1,233,203,771.31-491,777,817.26

Finding the Fourth Proportional to 893,617,836.61, 1,233,203,771.31 and 491,777,817.26

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Solution

The fourth proportional to 893,617,836.61, 1,233,203,771.31 and 491,777,817.26 is: 678,659,527.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,617,836.61 : 1,233,203,771.31 = 491,777,817.26 : x
  2. Step 2: Convert to fraction form
    893,617,836.61/1,233,203,771.31 = 491,777,817.26/x
  3. Step 3: Cross multiply
    893,617,836.61x = 1,233,203,771.31 × 491,777,817.26
  4. Step 4: Simplify right side
    893,617,836.61x = 606,462,258,891,632,000
  5. Step 5: Solve for x
    x = 606,462,258,891,632,000/893,617,836.61
  6. Step 6: Final answer
    x = 678,659,527.65

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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.