Finding the Fourth Proportional to 87,480,562.80, 131,220,844.20 and 55,027,232.40
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Solution
The fourth proportional to 87,480,562.80, 131,220,844.20 and 55,027,232.40 is: 82,540,848.60
Step by Step Solution
- Step 1: Write the proportion equation
87,480,562.80 : 131,220,844.20 = 55,027,232.40 : x - Step 2: Convert to fraction form
87,480,562.80/131,220,844.20 = 55,027,232.40/x - Step 3: Cross multiply
87,480,562.80x = 131,220,844.20 × 55,027,232.40 - Step 4: Simplify right side
87,480,562.80x = 7,220,719,889,517,592 - Step 5: Solve for x
x = 7,220,719,889,517,592/87,480,562.80 - Step 6: Final answer
x = 82,540,848.60
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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.