Home / 201,204,002.40-301,806,003.60-139,981,999.20

Finding the Fourth Proportional to 201,204,002.40, 301,806,003.60 and 139,981,999.20

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Solution

The fourth proportional to 201,204,002.40, 301,806,003.60 and 139,981,999.20 is: 209,972,998.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,204,002.40 : 301,806,003.60 = 139,981,999.20 : x
  2. Step 2: Convert to fraction form
    201,204,002.40/301,806,003.60 = 139,981,999.20/x
  3. Step 3: Cross multiply
    201,204,002.40x = 301,806,003.60 × 139,981,999.20
  4. Step 4: Simplify right side
    201,204,002.40x = 42,247,407,754,490,400
  5. Step 5: Solve for x
    x = 42,247,407,754,490,400/201,204,002.40
  6. Step 6: Final answer
    x = 209,972,998.80

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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.