Finding the Fourth Proportional to 3,638,634,230.30, 5,021,315,198.94 and 1,967,883,371.49
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Solution
The fourth proportional to 3,638,634,230.30, 5,021,315,198.94 and 1,967,883,371.49 is: 2,715,679,031.63
Step by Step Solution
- Step 1: Write the proportion equation
3,638,634,230.30 : 5,021,315,198.94 = 1,967,883,371.49 : x - Step 2: Convert to fraction form
3,638,634,230.30/5,021,315,198.94 = 1,967,883,371.49/x - Step 3: Cross multiply
3,638,634,230.30x = 5,021,315,198.94 × 1,967,883,371.49 - Step 4: Simplify right side
3,638,634,230.30x = 9,881,362,682,996,957,184 - Step 5: Solve for x
x = 9,881,362,682,996,957,184/3,638,634,230.30 - Step 6: Final answer
x = 2,715,679,031.63
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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.