Finding the Fourth Proportional to 19,948,633.64, 29,879,647.85 and 12,248,906.48
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Solution
The fourth proportional to 19,948,633.64, 29,879,647.85 and 12,248,906.48 is: 18,346,770.95
Step by Step Solution
- Step 1: Write the proportion equation
19,948,633.64 : 29,879,647.85 = 12,248,906.48 : x - Step 2: Convert to fraction form
19,948,633.64/29,879,647.85 = 12,248,906.48/x - Step 3: Cross multiply
19,948,633.64x = 29,879,647.85 × 12,248,906.48 - Step 4: Simplify right side
19,948,633.64x = 365,993,012,051,207.06 - Step 5: Solve for x
x = 365,993,012,051,207.06/19,948,633.64 - Step 6: Final answer
x = 18,346,770.95
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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.