Home / 285,269,416.40-393,673,365.96-154,889,224.40

Finding the Fourth Proportional to 285,269,416.40, 393,673,365.96 and 154,889,224.40

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Solution

The fourth proportional to 285,269,416.40, 393,673,365.96 and 154,889,224.40 is: 213,747,982.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,269,416.40 : 393,673,365.96 = 154,889,224.40 : x
  2. Step 2: Convert to fraction form
    285,269,416.40/393,673,365.96 = 154,889,224.40/x
  3. Step 3: Cross multiply
    285,269,416.40x = 393,673,365.96 × 154,889,224.40
  4. Step 4: Simplify right side
    285,269,416.40x = 60,975,762,320,481,760
  5. Step 5: Solve for x
    x = 60,975,762,320,481,760/285,269,416.40
  6. Step 6: Final answer
    x = 213,747,982.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.