Finding the Fourth Proportional to 11,367,972.38, 15,687,777.75 and 6,211,370.90
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Solution
The fourth proportional to 11,367,972.38, 15,687,777.75 and 6,211,370.90 is: 8,571,678.66
Step by Step Solution
- Step 1: Write the proportion equation
11,367,972.38 : 15,687,777.75 = 6,211,370.90 : x - Step 2: Convert to fraction form
11,367,972.38/15,687,777.75 = 6,211,370.90/x - Step 3: Cross multiply
11,367,972.38x = 15,687,777.75 × 6,211,370.90 - Step 4: Simplify right side
11,367,972.38x = 97,442,606,186,090.67 - Step 5: Solve for x
x = 97,442,606,186,090.67/11,367,972.38 - Step 6: Final answer
x = 8,571,678.66
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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.