Finding the Fourth Proportional to 38,619,985.20, 57,967,302.60 and 19,472,362.80
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Solution
The fourth proportional to 38,619,985.20, 57,967,302.60 and 19,472,362.80 is: 29,227,363.52
Step by Step Solution
- Step 1: Write the proportion equation
38,619,985.20 : 57,967,302.60 = 19,472,362.80 : x - Step 2: Convert to fraction form
38,619,985.20/57,967,302.60 = 19,472,362.80/x - Step 3: Cross multiply
38,619,985.20x = 57,967,302.60 × 19,472,362.80 - Step 4: Simplify right side
38,619,985.20x = 1,128,760,346,764,583.25 - Step 5: Solve for x
x = 1,128,760,346,764,583.25/38,619,985.20 - Step 6: Final answer
x = 29,227,363.52
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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.