Finding the Fourth Proportional to 14,086,988.64, 19,440,524.88 and 7,892,296.56
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Solution
The fourth proportional to 14,086,988.64, 19,440,524.88 and 7,892,296.56 is: 10,891,638.49
Step by Step Solution
- Step 1: Write the proportion equation
14,086,988.64 : 19,440,524.88 = 7,892,296.56 : x - Step 2: Convert to fraction form
14,086,988.64/19,440,524.88 = 7,892,296.56/x - Step 3: Cross multiply
14,086,988.64x = 19,440,524.88 × 7,892,296.56 - Step 4: Simplify right side
14,086,988.64x = 153,430,387,635,018.41 - Step 5: Solve for x
x = 153,430,387,635,018.41/14,086,988.64 - Step 6: Final answer
x = 10,891,638.49
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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.