Finding the Fourth Proportional to 21,259,182.75, 29,337,678.27 and 12,440,329.08
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Solution
The fourth proportional to 21,259,182.75, 29,337,678.27 and 12,440,329.08 is: 17,167,657.69
Step by Step Solution
- Step 1: Write the proportion equation
21,259,182.75 : 29,337,678.27 = 12,440,329.08 : x - Step 2: Convert to fraction form
21,259,182.75/29,337,678.27 = 12,440,329.08/x - Step 3: Cross multiply
21,259,182.75x = 29,337,678.27 × 12,440,329.08 - Step 4: Simplify right side
21,259,182.75x = 364,970,372,121,965.06 - Step 5: Solve for x
x = 364,970,372,121,965.06/21,259,182.75 - Step 6: Final answer
x = 17,167,657.69
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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.