Finding the Fourth Proportional to 18,521,718.30, 27,782,577.45 and 18,167,424.30
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Solution
The fourth proportional to 18,521,718.30, 27,782,577.45 and 18,167,424.30 is: 27,251,136.45
Step by Step Solution
- Step 1: Write the proportion equation
18,521,718.30 : 27,782,577.45 = 18,167,424.30 : x - Step 2: Convert to fraction form
18,521,718.30/27,782,577.45 = 18,167,424.30/x - Step 3: Cross multiply
18,521,718.30x = 27,782,577.45 × 18,167,424.30 - Step 4: Simplify right side
18,521,718.30x = 504,737,872,681,762.06 - Step 5: Solve for x
x = 504,737,872,681,762.06/18,521,718.30 - Step 6: Final answer
x = 27,251,136.45
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1.5x scale
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.