Finding the Fourth Proportional to 21,049,158.12, 29,047,838.42 and 11,391,366.12
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Solution
The fourth proportional to 21,049,158.12, 29,047,838.42 and 11,391,366.12 is: 15,720,085.36
Step by Step Solution
- Step 1: Write the proportion equation
21,049,158.12 : 29,047,838.42 = 11,391,366.12 : x - Step 2: Convert to fraction form
21,049,158.12/29,047,838.42 = 11,391,366.12/x - Step 3: Cross multiply
21,049,158.12x = 29,047,838.42 × 11,391,366.12 - Step 4: Simplify right side
21,049,158.12x = 330,894,562,436,822.31 - Step 5: Solve for x
x = 330,894,562,436,822.31/21,049,158.12 - Step 6: Final answer
x = 15,720,085.36
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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.