Finding the Fourth Proportional to 15,234,121.40, 21,023,085.25 and 8,707,890.99
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Solution
The fourth proportional to 15,234,121.40, 21,023,085.25 and 8,707,890.99 is: 12,016,888.26
Step by Step Solution
- Step 1: Write the proportion equation
15,234,121.40 : 21,023,085.25 = 8,707,890.99 : x - Step 2: Convert to fraction form
15,234,121.40/21,023,085.25 = 8,707,890.99/x - Step 3: Cross multiply
15,234,121.40x = 21,023,085.25 × 8,707,890.99 - Step 4: Simplify right side
15,234,121.40x = 183,066,734,630,476.91 - Step 5: Solve for x
x = 183,066,734,630,476.91/15,234,121.40 - Step 6: Final answer
x = 12,016,888.26
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.