Finding the Fourth Proportional to 87,970,830.40, 132,019,231.20 and 36,889,508.80
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Solution
The fourth proportional to 87,970,830.40, 132,019,231.20 and 36,889,508.80 is: 55,360,675.45
Step by Step Solution
- Step 1: Write the proportion equation
87,970,830.40 : 132,019,231.20 = 36,889,508.80 : x - Step 2: Convert to fraction form
87,970,830.40/132,019,231.20 = 36,889,508.80/x - Step 3: Cross multiply
87,970,830.40x = 132,019,231.20 × 36,889,508.80 - Step 4: Simplify right side
87,970,830.40x = 4,870,124,591,121,634 - Step 5: Solve for x
x = 4,870,124,591,121,634/87,970,830.40 - Step 6: Final answer
x = 55,360,675.45
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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.