Home / 1,603,372,958.48-2,211,868,404-1,391,382,250.76

Finding the Fourth Proportional to 1,603,372,958.48, 2,211,868,404 and 1,391,382,250.76

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Solution

The fourth proportional to 1,603,372,958.48, 2,211,868,404 and 1,391,382,250.76 is: 1,919,425,185.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,603,372,958.48 : 2,211,868,404 = 1,391,382,250.76 : x
  2. Step 2: Convert to fraction form
    1,603,372,958.48/2,211,868,404 = 1,391,382,250.76/x
  3. Step 3: Cross multiply
    1,603,372,958.48x = 2,211,868,404 × 1,391,382,250.76
  4. Step 4: Simplify right side
    1,603,372,958.48x = 3,077,554,438,342,449,152
  5. Step 5: Solve for x
    x = 3,077,554,438,342,449,152/1,603,372,958.48
  6. Step 6: Final answer
    x = 1,919,425,185.55

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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.