Home / 675,286,081.10-931,992,662.75-389,121,933.85

Finding the Fourth Proportional to 675,286,081.10, 931,992,662.75 and 389,121,933.85

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Solution

The fourth proportional to 675,286,081.10, 931,992,662.75 and 389,121,933.85 is: 537,044,665.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,286,081.10 : 931,992,662.75 = 389,121,933.85 : x
  2. Step 2: Convert to fraction form
    675,286,081.10/931,992,662.75 = 389,121,933.85/x
  3. Step 3: Cross multiply
    675,286,081.10x = 931,992,662.75 × 389,121,933.85
  4. Step 4: Simplify right side
    675,286,081.10x = 362,658,787,261,933,760
  5. Step 5: Solve for x
    x = 362,658,787,261,933,760/675,286,081.10
  6. Step 6: Final answer
    x = 537,044,665.09

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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.