Home / 420,241,388.52-629,860,571.10-195,590,783.64

Finding the Fourth Proportional to 420,241,388.52, 629,860,571.10 and 195,590,783.64

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Solution

The fourth proportional to 420,241,388.52, 629,860,571.10 and 195,590,783.64 is: 293,152,759.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,241,388.52 : 629,860,571.10 = 195,590,783.64 : x
  2. Step 2: Convert to fraction form
    420,241,388.52/629,860,571.10 = 195,590,783.64/x
  3. Step 3: Cross multiply
    420,241,388.52x = 629,860,571.10 × 195,590,783.64
  4. Step 4: Simplify right side
    420,241,388.52x = 123,194,922,685,386,928
  5. Step 5: Solve for x
    x = 123,194,922,685,386,928/420,241,388.52
  6. Step 6: Final answer
    x = 293,152,759.46

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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.