Finding the Fourth Proportional to 15,341,949.68, 21,172,339.42 and 8,373,074.21
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Solution
The fourth proportional to 15,341,949.68, 21,172,339.42 and 8,373,074.21 is: 11,555,087.38
Step by Step Solution
- Step 1: Write the proportion equation
15,341,949.68 : 21,172,339.42 = 8,373,074.21 : x - Step 2: Convert to fraction form
15,341,949.68/21,172,339.42 = 8,373,074.21/x - Step 3: Cross multiply
15,341,949.68x = 21,172,339.42 × 8,373,074.21 - Step 4: Simplify right side
15,341,949.68x = 177,277,569,075,872.12 - Step 5: Solve for x
x = 177,277,569,075,872.12/15,341,949.68 - Step 6: Final answer
x = 11,555,087.38
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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.