Home / 201,204,431.40-301,806,647.10-199,291,243.80

Finding the Fourth Proportional to 201,204,431.40, 301,806,647.10 and 199,291,243.80

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Solution

The fourth proportional to 201,204,431.40, 301,806,647.10 and 199,291,243.80 is: 298,936,865.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,204,431.40 : 301,806,647.10 = 199,291,243.80 : x
  2. Step 2: Convert to fraction form
    201,204,431.40/301,806,647.10 = 199,291,243.80/x
  3. Step 3: Cross multiply
    201,204,431.40x = 301,806,647.10 × 199,291,243.80
  4. Step 4: Simplify right side
    201,204,431.40x = 60,147,422,087,666,672
  5. Step 5: Solve for x
    x = 60,147,422,087,666,672/201,204,431.40
  6. Step 6: Final answer
    x = 298,936,865.70

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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.