Home / 1,985,804,530.80-2,978,706,796.20-1,297,056,994.80

Finding the Fourth Proportional to 1,985,804,530.80, 2,978,706,796.20 and 1,297,056,994.80

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Solution

The fourth proportional to 1,985,804,530.80, 2,978,706,796.20 and 1,297,056,994.80 is: 1,945,585,492.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,985,804,530.80 : 2,978,706,796.20 = 1,297,056,994.80 : x
  2. Step 2: Convert to fraction form
    1,985,804,530.80/2,978,706,796.20 = 1,297,056,994.80/x
  3. Step 3: Cross multiply
    1,985,804,530.80x = 2,978,706,796.20 × 1,297,056,994.80
  4. Step 4: Simplify right side
    1,985,804,530.80x = 3,863,552,485,469,507,584
  5. Step 5: Solve for x
    x = 3,863,552,485,469,507,584/1,985,804,530.80
  6. Step 6: Final answer
    x = 1,945,585,492.20

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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.