Home / 338,659,321.70-507,988,982.55-108,651,656.90

Finding the Fourth Proportional to 338,659,321.70, 507,988,982.55 and 108,651,656.90

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Solution

The fourth proportional to 338,659,321.70, 507,988,982.55 and 108,651,656.90 is: 162,977,485.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,659,321.70 : 507,988,982.55 = 108,651,656.90 : x
  2. Step 2: Convert to fraction form
    338,659,321.70/507,988,982.55 = 108,651,656.90/x
  3. Step 3: Cross multiply
    338,659,321.70x = 507,988,982.55 × 108,651,656.90
  4. Step 4: Simplify right side
    338,659,321.70x = 55,193,844,641,002,688
  5. Step 5: Solve for x
    x = 55,193,844,641,002,688/338,659,321.70
  6. Step 6: Final answer
    x = 162,977,485.35

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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.