Finding the Fourth Proportional to 85,669,153.95, 128,515,932.56 and 26,586,639.02
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Solution
The fourth proportional to 85,669,153.95, 128,515,932.56 and 26,586,639.02 is: 39,883,745.19
Step by Step Solution
- Step 1: Write the proportion equation
85,669,153.95 : 128,515,932.56 = 26,586,639.02 : x - Step 2: Convert to fraction form
85,669,153.95/128,515,932.56 = 26,586,639.02/x - Step 3: Cross multiply
85,669,153.95x = 128,515,932.56 × 26,586,639.02 - Step 4: Simplify right side
85,669,153.95x = 3,416,806,706,515,872 - Step 5: Solve for x
x = 3,416,806,706,515,872/85,669,153.95 - Step 6: Final answer
x = 39,883,745.19
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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.