Home / 355,731,090.12-490,797,041.94-199,073,305.80

Finding the Fourth Proportional to 355,731,090.12, 490,797,041.94 and 199,073,305.80

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Solution

The fourth proportional to 355,731,090.12, 490,797,041.94 and 199,073,305.80 is: 274,658,561.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,731,090.12 : 490,797,041.94 = 199,073,305.80 : x
  2. Step 2: Convert to fraction form
    355,731,090.12/490,797,041.94 = 199,073,305.80/x
  3. Step 3: Cross multiply
    355,731,090.12x = 490,797,041.94 × 199,073,305.80
  4. Step 4: Simplify right side
    355,731,090.12x = 97,704,589,615,857,056
  5. Step 5: Solve for x
    x = 97,704,589,615,857,056/355,731,090.12
  6. Step 6: Final answer
    x = 274,658,561.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.