Finding the Fourth Proportional to 39,088,571.62, 53,942,291.13 and 21,684,916.66
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Solution
The fourth proportional to 39,088,571.62, 53,942,291.13 and 21,684,916.66 is: 29,925,219.55
Step by Step Solution
- Step 1: Write the proportion equation
39,088,571.62 : 53,942,291.13 = 21,684,916.66 : x - Step 2: Convert to fraction form
39,088,571.62/53,942,291.13 = 21,684,916.66/x - Step 3: Cross multiply
39,088,571.62x = 53,942,291.13 × 21,684,916.66 - Step 4: Simplify right side
39,088,571.62x = 1,169,734,087,603,507.25 - Step 5: Solve for x
x = 1,169,734,087,603,507.25/39,088,571.62 - Step 6: Final answer
x = 29,925,219.55
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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.