Home / 201,204,619.40-301,806,929.10-142,753,982.60

Finding the Fourth Proportional to 201,204,619.40, 301,806,929.10 and 142,753,982.60

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Solution

The fourth proportional to 201,204,619.40, 301,806,929.10 and 142,753,982.60 is: 214,130,973.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,204,619.40 : 301,806,929.10 = 142,753,982.60 : x
  2. Step 2: Convert to fraction form
    201,204,619.40/301,806,929.10 = 142,753,982.60/x
  3. Step 3: Cross multiply
    201,204,619.40x = 301,806,929.10 × 142,753,982.60
  4. Step 4: Simplify right side
    201,204,619.40x = 43,084,141,105,300,832
  5. Step 5: Solve for x
    x = 43,084,141,105,300,832/201,204,619.40
  6. Step 6: Final answer
    x = 214,130,973.90

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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.