Finding the Fourth Proportional to 21,039,717.77, 29,029,877.03 and 12,779,549.99
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Solution
The fourth proportional to 21,039,717.77, 29,029,877.03 and 12,779,549.99 is: 17,632,782.37
Step by Step Solution
- Step 1: Write the proportion equation
21,039,717.77 : 29,029,877.03 = 12,779,549.99 : x - Step 2: Convert to fraction form
21,039,717.77/29,029,877.03 = 12,779,549.99/x - Step 3: Cross multiply
21,039,717.77x = 29,029,877.03 × 12,779,549.99 - Step 4: Simplify right side
21,039,717.77x = 370,988,764,499,390.56 - Step 5: Solve for x
x = 370,988,764,499,390.56/21,039,717.77 - Step 6: Final answer
x = 17,632,782.37
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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.