Finding the Fourth Proportional to 21,092,901.22, 29,110,374.66 and 12,833,549.92
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Solution
The fourth proportional to 21,092,901.22, 29,110,374.66 and 12,833,549.92 is: 17,711,619.78
Step by Step Solution
- Step 1: Write the proportion equation
21,092,901.22 : 29,110,374.66 = 12,833,549.92 : x - Step 2: Convert to fraction form
21,092,901.22/29,110,374.66 = 12,833,549.92/x - Step 3: Cross multiply
21,092,901.22x = 29,110,374.66 × 12,833,549.92 - Step 4: Simplify right side
21,092,901.22x = 373,589,446,389,013 - Step 5: Solve for x
x = 373,589,446,389,013/21,092,901.22 - Step 6: Final answer
x = 17,711,619.78
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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.