Home / 964,294,321.80-1,331,009,369.46-629,817,977.64

Finding the Fourth Proportional to 964,294,321.80, 1,331,009,369.46 and 629,817,977.64

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Solution

The fourth proportional to 964,294,321.80, 1,331,009,369.46 and 629,817,977.64 is: 869,333,781.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    964,294,321.80 : 1,331,009,369.46 = 629,817,977.64 : x
  2. Step 2: Convert to fraction form
    964,294,321.80/1,331,009,369.46 = 629,817,977.64/x
  3. Step 3: Cross multiply
    964,294,321.80x = 1,331,009,369.46 × 629,817,977.64
  4. Step 4: Simplify right side
    964,294,321.80x = 838,293,629,293,188,736
  5. Step 5: Solve for x
    x = 838,293,629,293,188,736/964,294,321.80
  6. Step 6: Final answer
    x = 869,333,781.55

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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.