Finding the Fourth Proportional to 21,056,357.11, 29,057,237.49 and 11,763,996.99
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Solution
The fourth proportional to 21,056,357.11, 29,057,237.49 and 11,763,996.99 is: 16,234,016.77
Step by Step Solution
- Step 1: Write the proportion equation
21,056,357.11 : 29,057,237.49 = 11,763,996.99 : x - Step 2: Convert to fraction form
21,056,357.11/29,057,237.49 = 11,763,996.99/x - Step 3: Cross multiply
21,056,357.11x = 29,057,237.49 × 11,763,996.99 - Step 4: Simplify right side
21,056,357.11x = 341,829,254,370,075.12 - Step 5: Solve for x
x = 341,829,254,370,075.12/21,056,357.11 - Step 6: Final answer
x = 16,234,016.77
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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.