Finding the Fourth Proportional to 399,425,644.40, 599,138,466.60 and 326,866,233.20
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Solution
The fourth proportional to 399,425,644.40, 599,138,466.60 and 326,866,233.20 is: 490,299,349.80
Step by Step Solution
- Step 1: Write the proportion equation
399,425,644.40 : 599,138,466.60 = 326,866,233.20 : x - Step 2: Convert to fraction form
399,425,644.40/599,138,466.60 = 326,866,233.20/x - Step 3: Cross multiply
399,425,644.40x = 599,138,466.60 × 326,866,233.20 - Step 4: Simplify right side
399,425,644.40x = 195,838,133,742,766,016 - Step 5: Solve for x
x = 195,838,133,742,766,016/399,425,644.40 - Step 6: Final answer
x = 490,299,349.80
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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.