Finding the Fourth Proportional to 53,955,619.20, 80,933,428.80 and 48,286,915.20
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Solution
The fourth proportional to 53,955,619.20, 80,933,428.80 and 48,286,915.20 is: 72,430,372.80
Step by Step Solution
- Step 1: Write the proportion equation
53,955,619.20 : 80,933,428.80 = 48,286,915.20 : x - Step 2: Convert to fraction form
53,955,619.20/80,933,428.80 = 48,286,915.20/x - Step 3: Cross multiply
53,955,619.20x = 80,933,428.80 × 48,286,915.20 - Step 4: Simplify right side
53,955,619.20x = 3,908,025,613,310,838 - Step 5: Solve for x
x = 3,908,025,613,310,838/53,955,619.20 - Step 6: Final answer
x = 72,430,372.80
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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.