Finding the Fourth Proportional to 13,347,463.71, 18,419,644.90 and 7,841,070.65
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Solution
The fourth proportional to 13,347,463.71, 18,419,644.90 and 7,841,070.65 is: 10,820,762.67
Step by Step Solution
- Step 1: Write the proportion equation
13,347,463.71 : 18,419,644.90 = 7,841,070.65 : x - Step 2: Convert to fraction form
13,347,463.71/18,419,644.90 = 7,841,070.65/x - Step 3: Cross multiply
13,347,463.71x = 18,419,644.90 × 7,841,070.65 - Step 4: Simplify right side
13,347,463.71x = 144,429,737,008,812.19 - Step 5: Solve for x
x = 144,429,737,008,812.19/13,347,463.71 - Step 6: Final answer
x = 10,820,762.67
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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.