Finding the Fourth Proportional to 17,387,729.40, 26,081,594.10 and 10,921,207.80
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Solution
The fourth proportional to 17,387,729.40, 26,081,594.10 and 10,921,207.80 is: 16,381,811.70
Step by Step Solution
- Step 1: Write the proportion equation
17,387,729.40 : 26,081,594.10 = 10,921,207.80 : x - Step 2: Convert to fraction form
17,387,729.40/26,081,594.10 = 10,921,207.80/x - Step 3: Cross multiply
17,387,729.40x = 26,081,594.10 × 10,921,207.80 - Step 4: Simplify right side
17,387,729.40x = 284,842,508,921,354 - Step 5: Solve for x
x = 284,842,508,921,354/17,387,729.40 - Step 6: Final answer
x = 16,381,811.70
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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.