Home / 211,699,401.46-317,477,480.67-80,510,508.80

Finding the Fourth Proportional to 211,699,401.46, 317,477,480.67 and 80,510,508.80

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Solution

The fourth proportional to 211,699,401.46, 317,477,480.67 and 80,510,508.80 is: 120,738,525.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,699,401.46 : 317,477,480.67 = 80,510,508.80 : x
  2. Step 2: Convert to fraction form
    211,699,401.46/317,477,480.67 = 80,510,508.80/x
  3. Step 3: Cross multiply
    211,699,401.46x = 317,477,480.67 × 80,510,508.80
  4. Step 4: Simplify right side
    211,699,401.46x = 25,560,273,500,887,020
  5. Step 5: Solve for x
    x = 25,560,273,500,887,020/211,699,401.46
  6. Step 6: Final answer
    x = 120,738,525.12

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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.