Finding the Fourth Proportional to 19,286,514.72, 28,929,772.08 and 9,158,430.24
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Solution
The fourth proportional to 19,286,514.72, 28,929,772.08 and 9,158,430.24 is: 13,737,645.36
Step by Step Solution
- Step 1: Write the proportion equation
19,286,514.72 : 28,929,772.08 = 9,158,430.24 : x - Step 2: Convert to fraction form
19,286,514.72/28,929,772.08 = 9,158,430.24/x - Step 3: Cross multiply
19,286,514.72x = 28,929,772.08 × 9,158,430.24 - Step 4: Simplify right side
19,286,514.72x = 264,951,299,453,779.69 - Step 5: Solve for x
x = 264,951,299,453,779.69/19,286,514.72 - Step 6: Final answer
x = 13,737,645.36
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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.