Finding the Fourth Proportional to 21,283,764.95, 29,371,594.49 and 11,494,208.19
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Solution
The fourth proportional to 21,283,764.95, 29,371,594.49 and 11,494,208.19 is: 15,862,006.69
Step by Step Solution
- Step 1: Write the proportion equation
21,283,764.95 : 29,371,594.49 = 11,494,208.19 : x - Step 2: Convert to fraction form
21,283,764.95/29,371,594.49 = 11,494,208.19/x - Step 3: Cross multiply
21,283,764.95x = 29,371,594.49 × 11,494,208.19 - Step 4: Simplify right side
21,283,764.95x = 337,603,221,940,316.81 - Step 5: Solve for x
x = 337,603,221,940,316.81/21,283,764.95 - Step 6: Final answer
x = 15,862,006.69
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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.