Finding the Fourth Proportional to 19,686,205.30, 29,529,307.95 and 11,041,431.70
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Solution
The fourth proportional to 19,686,205.30, 29,529,307.95 and 11,041,431.70 is: 16,562,147.55
Step by Step Solution
- Step 1: Write the proportion equation
19,686,205.30 : 29,529,307.95 = 11,041,431.70 : x - Step 2: Convert to fraction form
19,686,205.30/29,529,307.95 = 11,041,431.70/x - Step 3: Cross multiply
19,686,205.30x = 29,529,307.95 × 11,041,431.70 - Step 4: Simplify right side
19,686,205.30x = 326,045,836,878,192 - Step 5: Solve for x
x = 326,045,836,878,192/19,686,205.30 - Step 6: Final answer
x = 16,562,147.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.