Home / 1,282,121,809,416.60-1,923,244,562,392.20-421,576,926,369.12

Finding the Fourth Proportional to 1,282,121,809,416.60, 1,923,244,562,392.20 and 421,576,926,369.12

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Solution

The fourth proportional to 1,282,121,809,416.60, 1,923,244,562,392.20 and 421,576,926,369.12 is: 632,385,726,000.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,282,121,809,416.60 : 1,923,244,562,392.20 = 421,576,926,369.12 : x
  2. Step 2: Convert to fraction form
    1,282,121,809,416.60/1,923,244,562,392.20 = 421,576,926,369.12/x
  3. Step 3: Cross multiply
    1,282,121,809,416.60x = 1,923,244,562,392.20 × 421,576,926,369.12
  4. Step 4: Simplify right side
    1,282,121,809,416.60x = 810,795,531,269,426,896,699,392
  5. Step 5: Solve for x
    x = 810,795,531,269,426,896,699,392/1,282,121,809,416.60
  6. Step 6: Final answer
    x = 632,385,726,000.84

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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.