Finding the Fourth Proportional to 87,120,250.80, 130,680,376.20 and 73,515,361.20
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Solution
The fourth proportional to 87,120,250.80, 130,680,376.20 and 73,515,361.20 is: 110,273,041.80
Step by Step Solution
- Step 1: Write the proportion equation
87,120,250.80 : 130,680,376.20 = 73,515,361.20 : x - Step 2: Convert to fraction form
87,120,250.80/130,680,376.20 = 73,515,361.20/x - Step 3: Cross multiply
87,120,250.80x = 130,680,376.20 × 73,515,361.20 - Step 4: Simplify right side
87,120,250.80x = 9,607,015,058,094,884 - Step 5: Solve for x
x = 9,607,015,058,094,884/87,120,250.80 - Step 6: Final answer
x = 110,273,041.80
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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.