Home / 931,682,419.60-1,397,523,629.40-285,366,182.80

Finding the Fourth Proportional to 931,682,419.60, 1,397,523,629.40 and 285,366,182.80

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Solution

The fourth proportional to 931,682,419.60, 1,397,523,629.40 and 285,366,182.80 is: 428,049,274.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,682,419.60 : 1,397,523,629.40 = 285,366,182.80 : x
  2. Step 2: Convert to fraction form
    931,682,419.60/1,397,523,629.40 = 285,366,182.80/x
  3. Step 3: Cross multiply
    931,682,419.60x = 1,397,523,629.40 × 285,366,182.80
  4. Step 4: Simplify right side
    931,682,419.60x = 398,805,983,494,679,872
  5. Step 5: Solve for x
    x = 398,805,983,494,679,872/931,682,419.60
  6. Step 6: Final answer
    x = 428,049,274.20

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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.