Finding the Fourth Proportional to 16,290,462.80, 24,393,703.80 and 12,931,230.80
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Solution
The fourth proportional to 16,290,462.80, 24,393,703.80 and 12,931,230.80 is: 19,363,514.58
Step by Step Solution
- Step 1: Write the proportion equation
16,290,462.80 : 24,393,703.80 = 12,931,230.80 : x - Step 2: Convert to fraction form
16,290,462.80/24,393,703.80 = 12,931,230.80/x - Step 3: Cross multiply
16,290,462.80x = 24,393,703.80 × 12,931,230.80 - Step 4: Simplify right side
16,290,462.80x = 315,440,613,904,637.06 - Step 5: Solve for x
x = 315,440,613,904,637.06/16,290,462.80 - Step 6: Final answer
x = 19,363,514.58
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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.