Home / 412,938,007.20-619,407,010.80-229,271,997.60

Finding the Fourth Proportional to 412,938,007.20, 619,407,010.80 and 229,271,997.60

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Solution

The fourth proportional to 412,938,007.20, 619,407,010.80 and 229,271,997.60 is: 343,907,996.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,938,007.20 : 619,407,010.80 = 229,271,997.60 : x
  2. Step 2: Convert to fraction form
    412,938,007.20/619,407,010.80 = 229,271,997.60/x
  3. Step 3: Cross multiply
    412,938,007.20x = 619,407,010.80 × 229,271,997.60
  4. Step 4: Simplify right side
    412,938,007.20x = 142,012,682,693,560,752
  5. Step 5: Solve for x
    x = 142,012,682,693,560,752/412,938,007.20
  6. Step 6: Final answer
    x = 343,907,996.40

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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.