Finding the Fourth Proportional to 8,136,979.11, 12,205,468.56 and 6,341,206.07
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Solution
The fourth proportional to 8,136,979.11, 12,205,468.56 and 6,341,206.07 is: 9,511,809.02
Step by Step Solution
- Step 1: Write the proportion equation
8,136,979.11 : 12,205,468.56 = 6,341,206.07 : x - Step 2: Convert to fraction form
8,136,979.11/12,205,468.56 = 6,341,206.07/x - Step 3: Cross multiply
8,136,979.11x = 12,205,468.56 × 6,341,206.07 - Step 4: Simplify right side
8,136,979.11x = 77,397,391,319,866.17 - Step 5: Solve for x
x = 77,397,391,319,866.17/8,136,979.11 - Step 6: Final answer
x = 9,511,809.02
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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.