Finding the Fourth Proportional to 21,343,682.17, 29,457,769.13 and 13,088,288.13
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Solution
The fourth proportional to 21,343,682.17, 29,457,769.13 and 13,088,288.13 is: 18,063,976.35
Step by Step Solution
- Step 1: Write the proportion equation
21,343,682.17 : 29,457,769.13 = 13,088,288.13 : x - Step 2: Convert to fraction form
21,343,682.17/29,457,769.13 = 13,088,288.13/x - Step 3: Cross multiply
21,343,682.17x = 29,457,769.13 × 13,088,288.13 - Step 4: Simplify right side
21,343,682.17x = 385,551,770,040,459.44 - Step 5: Solve for x
x = 385,551,770,040,459.44/21,343,682.17 - Step 6: Final answer
x = 18,063,976.35
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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.