Finding the Fourth Proportional to 38,804,549.80, 58,212,008.70 and 13,239,135.40
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Solution
The fourth proportional to 38,804,549.80, 58,212,008.70 and 13,239,135.40 is: 19,860,471.75
Step by Step Solution
- Step 1: Write the proportion equation
38,804,549.80 : 58,212,008.70 = 13,239,135.40 : x - Step 2: Convert to fraction form
38,804,549.80/58,212,008.70 = 13,239,135.40/x - Step 3: Cross multiply
38,804,549.80x = 58,212,008.70 × 13,239,135.40 - Step 4: Simplify right side
38,804,549.80x = 770,676,665,085,278 - Step 5: Solve for x
x = 770,676,665,085,278/38,804,549.80 - Step 6: Final answer
x = 19,860,471.75
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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.