Finding the Fourth Proportional to 13,698,679.55, 18,901,956.35 and 8,194,328.87
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Solution
The fourth proportional to 13,698,679.55, 18,901,956.35 and 8,194,328.87 is: 11,306,845.02
Step by Step Solution
- Step 1: Write the proportion equation
13,698,679.55 : 18,901,956.35 = 8,194,328.87 : x - Step 2: Convert to fraction form
13,698,679.55/18,901,956.35 = 8,194,328.87/x - Step 3: Cross multiply
13,698,679.55x = 18,901,956.35 × 8,194,328.87 - Step 4: Simplify right side
13,698,679.55x = 154,888,846,544,260.88 - Step 5: Solve for x
x = 154,888,846,544,260.88/13,698,679.55 - Step 6: Final answer
x = 11,306,845.02
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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.