Home / 1,985,804,540.55-2,978,706,810.83-1,297,057,004.55

Finding the Fourth Proportional to 1,985,804,540.55, 2,978,706,810.83 and 1,297,057,004.55

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Solution

The fourth proportional to 1,985,804,540.55, 2,978,706,810.83 and 1,297,057,004.55 is: 1,945,585,506.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,985,804,540.55 : 2,978,706,810.83 = 1,297,057,004.55 : x
  2. Step 2: Convert to fraction form
    1,985,804,540.55/2,978,706,810.83 = 1,297,057,004.55/x
  3. Step 3: Cross multiply
    1,985,804,540.55x = 2,978,706,810.83 × 1,297,057,004.55
  4. Step 4: Simplify right side
    1,985,804,540.55x = 3,863,552,533,481,357,824
  5. Step 5: Solve for x
    x = 3,863,552,533,481,357,824/1,985,804,540.55
  6. Step 6: Final answer
    x = 1,945,585,506.83

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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.