Finding the Fourth Proportional to 19,903,765,736.25, 29,855,760,214.77 and 6,638,987,602.09
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Solution
The fourth proportional to 19,903,765,736.25, 29,855,760,214.77 and 6,638,987,602.09 is: 9,958,518,631.27
Step by Step Solution
- Step 1: Write the proportion equation
19,903,765,736.25 : 29,855,760,214.77 = 6,638,987,602.09 : x - Step 2: Convert to fraction form
19,903,765,736.25/29,855,760,214.77 = 6,638,987,602.09/x - Step 3: Cross multiply
19,903,765,736.25x = 29,855,760,214.77 × 6,638,987,602.09 - Step 4: Simplify right side
19,903,765,736.25x = 198,212,021,916,829,908,992 - Step 5: Solve for x
x = 198,212,021,916,829,908,992/19,903,765,736.25 - Step 6: Final answer
x = 9,958,518,631.27
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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.