Finding the Fourth Proportional to 27,186,719.70, 40,783,902.01 and 8,736,479.12
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Solution
The fourth proportional to 27,186,719.70, 40,783,902.01 and 8,736,479.12 is: 13,105,947.03
Step by Step Solution
- Step 1: Write the proportion equation
27,186,719.70 : 40,783,902.01 = 8,736,479.12 : x - Step 2: Convert to fraction form
27,186,719.70/40,783,902.01 = 8,736,479.12/x - Step 3: Cross multiply
27,186,719.70x = 40,783,902.01 × 8,736,479.12 - Step 4: Simplify right side
27,186,719.70x = 356,307,708,342,491 - Step 5: Solve for x
x = 356,307,708,342,491/27,186,719.70 - Step 6: Final answer
x = 13,105,947.03
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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.