Finding the Fourth Proportional to 11,981,986.74, 17,977,469.67 and 6,221,124.18
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Solution
The fourth proportional to 11,981,986.74, 17,977,469.67 and 6,221,124.18 is: 9,334,017.28
Step by Step Solution
- Step 1: Write the proportion equation
11,981,986.74 : 17,977,469.67 = 6,221,124.18 : x - Step 2: Convert to fraction form
11,981,986.74/17,977,469.67 = 6,221,124.18/x - Step 3: Cross multiply
11,981,986.74x = 17,977,469.67 × 6,221,124.18 - Step 4: Simplify right side
11,981,986.74x = 111,840,071,259,253.62 - Step 5: Solve for x
x = 111,840,071,259,253.62/11,981,986.74 - Step 6: Final answer
x = 9,334,017.28
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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.