Home / 299,982,259.20-449,973,388.80-209,208,345.60

Finding the Fourth Proportional to 299,982,259.20, 449,973,388.80 and 209,208,345.60

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Solution

The fourth proportional to 299,982,259.20, 449,973,388.80 and 209,208,345.60 is: 313,812,518.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,982,259.20 : 449,973,388.80 = 209,208,345.60 : x
  2. Step 2: Convert to fraction form
    299,982,259.20/449,973,388.80 = 209,208,345.60/x
  3. Step 3: Cross multiply
    299,982,259.20x = 449,973,388.80 × 209,208,345.60
  4. Step 4: Simplify right side
    299,982,259.20x = 94,138,188,234,873,568
  5. Step 5: Solve for x
    x = 94,138,188,234,873,568/299,982,259.20
  6. Step 6: Final answer
    x = 313,812,518.40

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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.