Finding the Fourth Proportional to 39,957,459.84, 55,141,343.33 and 21,622,745.34
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Solution
The fourth proportional to 39,957,459.84, 55,141,343.33 and 21,622,745.34 is: 29,839,414.95
Step by Step Solution
- Step 1: Write the proportion equation
39,957,459.84 : 55,141,343.33 = 21,622,745.34 : x - Step 2: Convert to fraction form
39,957,459.84/55,141,343.33 = 21,622,745.34/x - Step 3: Cross multiply
39,957,459.84x = 55,141,343.33 × 21,622,745.34 - Step 4: Simplify right side
39,957,459.84x = 1,192,307,224,421,984 - Step 5: Solve for x
x = 1,192,307,224,421,984/39,957,459.84 - Step 6: Final answer
x = 29,839,414.95
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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.