Home / 427,992,801.29-641,786,825.24-165,800,156.16

Finding the Fourth Proportional to 427,992,801.29, 641,786,825.24 and 165,800,156.16

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Solution

The fourth proportional to 427,992,801.29, 641,786,825.24 and 165,800,156.16 is: 248,621,835.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,992,801.29 : 641,786,825.24 = 165,800,156.16 : x
  2. Step 2: Convert to fraction form
    427,992,801.29/641,786,825.24 = 165,800,156.16/x
  3. Step 3: Cross multiply
    427,992,801.29x = 641,786,825.24 × 165,800,156.16
  4. Step 4: Simplify right side
    427,992,801.29x = 106,408,355,844,807,168
  5. Step 5: Solve for x
    x = 106,408,355,844,807,168/427,992,801.29
  6. Step 6: Final answer
    x = 248,621,835.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.