Finding the Fourth Proportional to 790,612,040,891.60, 1,090,968,379,365.60 and 443,396,415,763.68
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Solution
The fourth proportional to 790,612,040,891.60, 1,090,968,379,365.60 and 443,396,415,763.68 is: 611,844,297,965.28
Step by Step Solution
- Step 1: Write the proportion equation
790,612,040,891.60 : 1,090,968,379,365.60 = 443,396,415,763.68 : x - Step 2: Convert to fraction form
790,612,040,891.60/1,090,968,379,365.60 = 443,396,415,763.68/x - Step 3: Cross multiply
790,612,040,891.60x = 1,090,968,379,365.60 × 443,396,415,763.68 - Step 4: Simplify right side
790,612,040,891.60x = 483,731,469,122,217,755,803,648 - Step 5: Solve for x
x = 483,731,469,122,217,755,803,648/790,612,040,891.60 - Step 6: Final answer
x = 611,844,297,965.28
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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.