Home / 212,476,661.60-318,864,291.60-135,985,704.80

Finding the Fourth Proportional to 212,476,661.60, 318,864,291.60 and 135,985,704.80

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Solution

The fourth proportional to 212,476,661.60, 318,864,291.60 and 135,985,704.80 is: 204,074,109.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,476,661.60 : 318,864,291.60 = 135,985,704.80 : x
  2. Step 2: Convert to fraction form
    212,476,661.60/318,864,291.60 = 135,985,704.80/x
  3. Step 3: Cross multiply
    212,476,661.60x = 318,864,291.60 × 135,985,704.80
  4. Step 4: Simplify right side
    212,476,661.60x = 43,360,985,428,778,728
  5. Step 5: Solve for x
    x = 43,360,985,428,778,728/212,476,661.60
  6. Step 6: Final answer
    x = 204,074,109.14

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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.