Finding the Fourth Proportional to 21,575,603.97, 29,775,238.61 and 12,408,254.01
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Solution
The fourth proportional to 21,575,603.97, 29,775,238.61 and 12,408,254.01 is: 17,123,911.08
Step by Step Solution
- Step 1: Write the proportion equation
21,575,603.97 : 29,775,238.61 = 12,408,254.01 : x - Step 2: Convert to fraction form
21,575,603.97/29,775,238.61 = 12,408,254.01/x - Step 3: Cross multiply
21,575,603.97x = 29,775,238.61 × 12,408,254.01 - Step 4: Simplify right side
21,575,603.97x = 369,458,723,819,198.06 - Step 5: Solve for x
x = 369,458,723,819,198.06/21,575,603.97 - Step 6: Final answer
x = 17,123,911.08
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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.