Finding the Fourth Proportional to 13,635,898.12, 18,817,938.69 and 7,441,343.99
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Solution
The fourth proportional to 13,635,898.12, 18,817,938.69 and 7,441,343.99 is: 10,269,272.60
Step by Step Solution
- Step 1: Write the proportion equation
13,635,898.12 : 18,817,938.69 = 7,441,343.99 : x - Step 2: Convert to fraction form
13,635,898.12/18,817,938.69 = 7,441,343.99/x - Step 3: Cross multiply
13,635,898.12x = 18,817,938.69 × 7,441,343.99 - Step 4: Simplify right side
13,635,898.12x = 140,030,754,843,723.56 - Step 5: Solve for x
x = 140,030,754,843,723.56/13,635,898.12 - Step 6: Final answer
x = 10,269,272.60
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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.