Home / 647,007,465.87-892,910,315.95-356,994,120.90

Finding the Fourth Proportional to 647,007,465.87, 892,910,315.95 and 356,994,120.90

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Solution

The fourth proportional to 647,007,465.87, 892,910,315.95 and 356,994,120.90 is: 492,673,964.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,007,465.87 : 892,910,315.95 = 356,994,120.90 : x
  2. Step 2: Convert to fraction form
    647,007,465.87/892,910,315.95 = 356,994,120.90/x
  3. Step 3: Cross multiply
    647,007,465.87x = 892,910,315.95 × 356,994,120.90
  4. Step 4: Simplify right side
    647,007,465.87x = 318,763,733,287,567,424
  5. Step 5: Solve for x
    x = 318,763,733,287,567,424/647,007,465.87
  6. Step 6: Final answer
    x = 492,673,964.53

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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.