Home / 839,341,619.42-1,259,014,791.11-321,930,661.82

Finding the Fourth Proportional to 839,341,619.42, 1,259,014,791.11 and 321,930,661.82

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Solution

The fourth proportional to 839,341,619.42, 1,259,014,791.11 and 321,930,661.82 is: 482,896,898.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,341,619.42 : 1,259,014,791.11 = 321,930,661.82 : x
  2. Step 2: Convert to fraction form
    839,341,619.42/1,259,014,791.11 = 321,930,661.82/x
  3. Step 3: Cross multiply
    839,341,619.42x = 1,259,014,791.11 × 321,930,661.82
  4. Step 4: Simplify right side
    839,341,619.42x = 405,315,464,944,749,248
  5. Step 5: Solve for x
    x = 405,315,464,944,749,248/839,341,619.42
  6. Step 6: Final answer
    x = 482,896,898.67

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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.