Finding the Fourth Proportional to 18,708,930.48, 25,804,097.46 and 16,099,832.19
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Solution
The fourth proportional to 18,708,930.48, 25,804,097.46 and 16,099,832.19 is: 22,205,525.82
Step by Step Solution
- Step 1: Write the proportion equation
18,708,930.48 : 25,804,097.46 = 16,099,832.19 : x - Step 2: Convert to fraction form
18,708,930.48/25,804,097.46 = 16,099,832.19/x - Step 3: Cross multiply
18,708,930.48x = 25,804,097.46 × 16,099,832.19 - Step 4: Simplify right side
18,708,930.48x = 415,441,638,920,405.25 - Step 5: Solve for x
x = 415,441,638,920,405.25/18,708,930.48 - Step 6: Final answer
x = 22,205,525.82
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.