Home / 189,532,740.21-261,538,948.40-109,067,338.59

Finding the Fourth Proportional to 189,532,740.21, 261,538,948.40 and 109,067,338.59

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Solution

The fourth proportional to 189,532,740.21, 261,538,948.40 and 109,067,338.59 is: 150,503,585.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,532,740.21 : 261,538,948.40 = 109,067,338.59 : x
  2. Step 2: Convert to fraction form
    189,532,740.21/261,538,948.40 = 109,067,338.59/x
  3. Step 3: Cross multiply
    189,532,740.21x = 261,538,948.40 × 109,067,338.59
  4. Step 4: Simplify right side
    189,532,740.21x = 28,525,357,039,615,340
  5. Step 5: Solve for x
    x = 28,525,357,039,615,340/189,532,740.21
  6. Step 6: Final answer
    x = 150,503,585.86

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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.