Finding the Fourth Proportional to 11,296,777.84, 15,597,060.90 and 8,678,618.99
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Solution
The fourth proportional to 11,296,777.84, 15,597,060.90 and 8,678,618.99 is: 11,982,261.75
Step by Step Solution
- Step 1: Write the proportion equation
11,296,777.84 : 15,597,060.90 = 8,678,618.99 : x - Step 2: Convert to fraction form
11,296,777.84/15,597,060.90 = 8,678,618.99/x - Step 3: Cross multiply
11,296,777.84x = 15,597,060.90 × 8,678,618.99 - Step 4: Simplify right side
11,296,777.84x = 135,360,948,966,967.66 - Step 5: Solve for x
x = 135,360,948,966,967.66/11,296,777.84 - Step 6: Final answer
x = 11,982,261.75
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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.