Finding the Fourth Proportional to 7,936,635.42, 11,903,678.64 and 2,178,024.12
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Solution
The fourth proportional to 7,936,635.42, 11,903,678.64 and 2,178,024.12 is: 3,266,686.43
Step by Step Solution
- Step 1: Write the proportion equation
7,936,635.42 : 11,903,678.64 = 2,178,024.12 : x - Step 2: Convert to fraction form
7,936,635.42/11,903,678.64 = 2,178,024.12/x - Step 3: Cross multiply
7,936,635.42x = 11,903,678.64 × 2,178,024.12 - Step 4: Simplify right side
7,936,635.42x = 25,926,499,194,648.80 - Step 5: Solve for x
x = 25,926,499,194,648.80/7,936,635.42 - Step 6: Final answer
x = 3,266,686.43
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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.