Home / 137,351,865.42-189,545,530.78-75,476,189.79

Finding the Fourth Proportional to 137,351,865.42, 189,545,530.78 and 75,476,189.79

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Solution

The fourth proportional to 137,351,865.42, 189,545,530.78 and 75,476,189.79 is: 104,157,118.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,351,865.42 : 189,545,530.78 = 75,476,189.79 : x
  2. Step 2: Convert to fraction form
    137,351,865.42/189,545,530.78 = 75,476,189.79/x
  3. Step 3: Cross multiply
    137,351,865.42x = 189,545,530.78 × 75,476,189.79
  4. Step 4: Simplify right side
    137,351,865.42x = 14,306,174,455,091,914
  5. Step 5: Solve for x
    x = 14,306,174,455,091,914/137,351,865.42
  6. Step 6: Final answer
    x = 104,157,118.01

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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.