Home / 201,204,412.80-301,806,619.20-139,982,409.60

Finding the Fourth Proportional to 201,204,412.80, 301,806,619.20 and 139,982,409.60

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Solution

The fourth proportional to 201,204,412.80, 301,806,619.20 and 139,982,409.60 is: 209,973,614.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,204,412.80 : 301,806,619.20 = 139,982,409.60 : x
  2. Step 2: Convert to fraction form
    201,204,412.80/301,806,619.20 = 139,982,409.60/x
  3. Step 3: Cross multiply
    201,204,412.80x = 301,806,619.20 × 139,982,409.60
  4. Step 4: Simplify right side
    201,204,412.80x = 42,247,617,788,845,624
  5. Step 5: Solve for x
    x = 42,247,617,788,845,624/201,204,412.80
  6. Step 6: Final answer
    x = 209,973,614.40

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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.