Home / 568,878,425.33-785,115,938.63-321,375,722.81

Finding the Fourth Proportional to 568,878,425.33, 785,115,938.63 and 321,375,722.81

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Solution

The fourth proportional to 568,878,425.33, 785,115,938.63 and 321,375,722.81 is: 443,534,490.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,878,425.33 : 785,115,938.63 = 321,375,722.81 : x
  2. Step 2: Convert to fraction form
    568,878,425.33/785,115,938.63 = 321,375,722.81/x
  3. Step 3: Cross multiply
    568,878,425.33x = 785,115,938.63 × 321,375,722.81
  4. Step 4: Simplify right side
    568,878,425.33x = 252,317,202,263,745,728
  5. Step 5: Solve for x
    x = 252,317,202,263,745,728/568,878,425.33
  6. Step 6: Final answer
    x = 443,534,490.03

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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.