Finding the Fourth Proportional to 11,122,943.80, 16,648,986.30 and 7,934,297.80
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Solution
The fourth proportional to 11,122,943.80, 16,648,986.30 and 7,934,297.80 is: 11,876,173.95
Step by Step Solution
- Step 1: Write the proportion equation
11,122,943.80 : 16,648,986.30 = 7,934,297.80 : x - Step 2: Convert to fraction form
11,122,943.80/16,648,986.30 = 7,934,297.80/x - Step 3: Cross multiply
11,122,943.80x = 16,648,986.30 × 7,934,297.80 - Step 4: Simplify right side
11,122,943.80x = 132,098,015,372,320.14 - Step 5: Solve for x
x = 132,098,015,372,320.14/11,122,943.80 - Step 6: Final answer
x = 11,876,173.95
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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.