Finding the Fourth Proportional to 19,854,382.61, 29,582,019.21 and 18,739,269.87
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Solution
The fourth proportional to 19,854,382.61, 29,582,019.21 and 18,739,269.87 is: 27,920,558.01
Step by Step Solution
- Step 1: Write the proportion equation
19,854,382.61 : 29,582,019.21 = 18,739,269.87 : x - Step 2: Convert to fraction form
19,854,382.61/29,582,019.21 = 18,739,269.87/x - Step 3: Cross multiply
19,854,382.61x = 29,582,019.21 × 18,739,269.87 - Step 4: Simplify right side
19,854,382.61x = 554,345,441,275,714.25 - Step 5: Solve for x
x = 554,345,441,275,714.25/19,854,382.61 - Step 6: Final answer
x = 27,920,558.01
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.