Home / 6,643,028,816.10-9,965,978,114.85-1,985,373,603.90

Finding the Fourth Proportional to 6,643,028,816.10, 9,965,978,114.85 and 1,985,373,603.90

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Solution

The fourth proportional to 6,643,028,816.10, 9,965,978,114.85 and 1,985,373,603.90 is: 2,978,489,245.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,643,028,816.10 : 9,965,978,114.85 = 1,985,373,603.90 : x
  2. Step 2: Convert to fraction form
    6,643,028,816.10/9,965,978,114.85 = 1,985,373,603.90/x
  3. Step 3: Cross multiply
    6,643,028,816.10x = 9,965,978,114.85 × 1,985,373,603.90
  4. Step 4: Simplify right side
    6,643,028,816.10x = 19,786,189,886,268,272,640
  5. Step 5: Solve for x
    x = 19,786,189,886,268,272,640/6,643,028,816.10
  6. Step 6: Final answer
    x = 2,978,489,245.50

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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.