Finding the Fourth Proportional to 18,409,917.38, 27,615,014.43 and 8,172,024.82
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Solution
The fourth proportional to 18,409,917.38, 27,615,014.43 and 8,172,024.82 is: 12,258,098.65
Step by Step Solution
- Step 1: Write the proportion equation
18,409,917.38 : 27,615,014.43 = 8,172,024.82 : x - Step 2: Convert to fraction form
18,409,917.38/27,615,014.43 = 8,172,024.82/x - Step 3: Cross multiply
18,409,917.38x = 27,615,014.43 × 8,172,024.82 - Step 4: Simplify right side
18,409,917.38x = 225,670,583,288,225.72 - Step 5: Solve for x
x = 225,670,583,288,225.72/18,409,917.38 - Step 6: Final answer
x = 12,258,098.65
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.