Finding the Fourth Proportional to 21,434,415,670.26, 29,579,518,147.68 and 11,918,763,115.02
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Solution
The fourth proportional to 21,434,415,670.26, 29,579,518,147.68 and 11,918,763,115.02 is: 16,447,906,734.77
Step by Step Solution
- Step 1: Write the proportion equation
21,434,415,670.26 : 29,579,518,147.68 = 11,918,763,115.02 : x - Step 2: Convert to fraction form
21,434,415,670.26/29,579,518,147.68 = 11,918,763,115.02/x - Step 3: Cross multiply
21,434,415,670.26x = 29,579,518,147.68 × 11,918,763,115.02 - Step 4: Simplify right side
21,434,415,670.26x = 352,551,269,858,633,121,792 - Step 5: Solve for x
x = 352,551,269,858,633,121,792/21,434,415,670.26 - Step 6: Final answer
x = 16,447,906,734.77
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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.