Finding the Fourth Proportional to 25,612,860.36, 38,421,981.91 and 8,342,406.12
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Solution
The fourth proportional to 25,612,860.36, 38,421,981.91 and 8,342,406.12 is: 12,514,485.79
Step by Step Solution
- Step 1: Write the proportion equation
25,612,860.36 : 38,421,981.91 = 8,342,406.12 : x - Step 2: Convert to fraction form
25,612,860.36/38,421,981.91 = 8,342,406.12/x - Step 3: Cross multiply
25,612,860.36x = 38,421,981.91 × 8,342,406.12 - Step 4: Simplify right side
25,612,860.36x = 320,531,777,028,513.25 - Step 5: Solve for x
x = 320,531,777,028,513.25/25,612,860.36 - Step 6: Final answer
x = 12,514,485.79
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.