Finding the Fourth Proportional to 118,562,534.70, 163,612,783.84 and 65,641,600.96
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Solution
The fourth proportional to 118,562,534.70, 163,612,783.84 and 65,641,600.96 is: 90,583,463.79
Step by Step Solution
- Step 1: Write the proportion equation
118,562,534.70 : 163,612,783.84 = 65,641,600.96 : x - Step 2: Convert to fraction form
118,562,534.70/163,612,783.84 = 65,641,600.96/x - Step 3: Cross multiply
118,562,534.70x = 163,612,783.84 × 65,641,600.96 - Step 4: Simplify right side
118,562,534.70x = 10,739,805,068,780,016 - Step 5: Solve for x
x = 10,739,805,068,780,016/118,562,534.70 - Step 6: Final answer
x = 90,583,463.79
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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.