Home / 669,307,115.88-923,666,250.06-371,961,890.55

Finding the Fourth Proportional to 669,307,115.88, 923,666,250.06 and 371,961,890.55

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Solution

The fourth proportional to 669,307,115.88, 923,666,250.06 and 371,961,890.55 is: 513,319,874.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,307,115.88 : 923,666,250.06 = 371,961,890.55 : x
  2. Step 2: Convert to fraction form
    669,307,115.88/923,666,250.06 = 371,961,890.55/x
  3. Step 3: Cross multiply
    669,307,115.88x = 923,666,250.06 × 371,961,890.55
  4. Step 4: Simplify right side
    669,307,115.88x = 343,568,644,609,546,624
  5. Step 5: Solve for x
    x = 343,568,644,609,546,624/669,307,115.88
  6. Step 6: Final answer
    x = 513,319,874.33

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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.