Finding the Fourth Proportional to 8,136,978.11, 12,205,467.06 and 6,341,205.07
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Solution
The fourth proportional to 8,136,978.11, 12,205,467.06 and 6,341,205.07 is: 9,511,807.52
Step by Step Solution
- Step 1: Write the proportion equation
8,136,978.11 : 12,205,467.06 = 6,341,205.07 : x - Step 2: Convert to fraction form
8,136,978.11/12,205,467.06 = 6,341,205.07/x - Step 3: Cross multiply
8,136,978.11x = 12,205,467.06 × 6,341,205.07 - Step 4: Simplify right side
8,136,978.11x = 77,397,369,602,590 - Step 5: Solve for x
x = 77,397,369,602,590/8,136,978.11 - Step 6: Final answer
x = 9,511,807.52
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1.5x scale
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.