Home / 644,738,516.21-967,297,518.50-208,031,007.89

Finding the Fourth Proportional to 644,738,516.21, 967,297,518.50 and 208,031,007.89

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Solution

The fourth proportional to 644,738,516.21, 967,297,518.50 and 208,031,007.89 is: 312,107,734.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,738,516.21 : 967,297,518.50 = 208,031,007.89 : x
  2. Step 2: Convert to fraction form
    644,738,516.21/967,297,518.50 = 208,031,007.89/x
  3. Step 3: Cross multiply
    644,738,516.21x = 967,297,518.50 × 208,031,007.89
  4. Step 4: Simplify right side
    644,738,516.21x = 201,227,877,697,174,272
  5. Step 5: Solve for x
    x = 201,227,877,697,174,272/644,738,516.21
  6. Step 6: Final answer
    x = 312,107,734.59

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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.