Finding the Fourth Proportional to 146,717,603.80, 220,076,405.70 and 89,321,975.80
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Solution
The fourth proportional to 146,717,603.80, 220,076,405.70 and 89,321,975.80 is: 133,982,963.70
Step by Step Solution
- Step 1: Write the proportion equation
146,717,603.80 : 220,076,405.70 = 89,321,975.80 : x - Step 2: Convert to fraction form
146,717,603.80/220,076,405.70 = 89,321,975.80/x - Step 3: Cross multiply
146,717,603.80x = 220,076,405.70 × 89,321,975.80 - Step 4: Simplify right side
146,717,603.80x = 19,657,659,384,086,380 - Step 5: Solve for x
x = 19,657,659,384,086,380/146,717,603.80 - Step 6: Final answer
x = 133,982,963.70
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1.5x scale
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.