Home / 427,992,795.12-641,786,815.95-165,800,149.98

Finding the Fourth Proportional to 427,992,795.12, 641,786,815.95 and 165,800,149.98

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Solution

The fourth proportional to 427,992,795.12, 641,786,815.95 and 165,800,149.98 is: 248,621,826.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,992,795.12 : 641,786,815.95 = 165,800,149.98 : x
  2. Step 2: Convert to fraction form
    427,992,795.12/641,786,815.95 = 165,800,149.98/x
  3. Step 3: Cross multiply
    427,992,795.12x = 641,786,815.95 × 165,800,149.98
  4. Step 4: Simplify right side
    427,992,795.12x = 106,408,350,339,696,656
  5. Step 5: Solve for x
    x = 106,408,350,339,696,656/427,992,795.12
  6. Step 6: Final answer
    x = 248,621,826.24

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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.