Home / 189,504,268.42-261,517,693.29-111,189,154.18

Finding the Fourth Proportional to 189,504,268.42, 261,517,693.29 and 111,189,154.18

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Solution

The fourth proportional to 189,504,268.42, 261,517,693.29 and 111,189,154.18 is: 153,442,090.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,504,268.42 : 261,517,693.29 = 111,189,154.18 : x
  2. Step 2: Convert to fraction form
    189,504,268.42/261,517,693.29 = 111,189,154.18/x
  3. Step 3: Cross multiply
    189,504,268.42x = 261,517,693.29 × 111,189,154.18
  4. Step 4: Simplify right side
    189,504,268.42x = 29,077,931,120,019,764
  5. Step 5: Solve for x
    x = 29,077,931,120,019,764/189,504,268.42
  6. Step 6: Final answer
    x = 153,442,090.58

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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.