Home / 1,179,936,643.60-1,769,904,965.40-318,380,726.80

Finding the Fourth Proportional to 1,179,936,643.60, 1,769,904,965.40 and 318,380,726.80

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Solution

The fourth proportional to 1,179,936,643.60, 1,769,904,965.40 and 318,380,726.80 is: 477,571,090.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,179,936,643.60 : 1,769,904,965.40 = 318,380,726.80 : x
  2. Step 2: Convert to fraction form
    1,179,936,643.60/1,769,904,965.40 = 318,380,726.80/x
  3. Step 3: Cross multiply
    1,179,936,643.60x = 1,769,904,965.40 × 318,380,726.80
  4. Step 4: Simplify right side
    1,179,936,643.60x = 563,503,629,250,980,928
  5. Step 5: Solve for x
    x = 563,503,629,250,980,928/1,179,936,643.60
  6. Step 6: Final answer
    x = 477,571,090.20

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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.