Finding the Fourth Proportional to 19,948,616.12, 29,879,621.52 and 12,248,888.96
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Solution
The fourth proportional to 19,948,616.12, 29,879,621.52 and 12,248,888.96 is: 18,346,744.65
Step by Step Solution
- Step 1: Write the proportion equation
19,948,616.12 : 29,879,621.52 = 12,248,888.96 : x - Step 2: Convert to fraction form
19,948,616.12/29,879,621.52 = 12,248,888.96/x - Step 3: Cross multiply
19,948,616.12x = 29,879,621.52 × 12,248,888.96 - Step 4: Simplify right side
19,948,616.12x = 365,992,166,165,306.44 - Step 5: Solve for x
x = 365,992,166,165,306.44/19,948,616.12 - Step 6: Final answer
x = 18,346,744.65
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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.