Finding the Fourth Proportional to 38,656,173.20, 57,991,258.20 and 19,438,566.80
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Solution
The fourth proportional to 38,656,173.20, 57,991,258.20 and 19,438,566.80 is: 29,161,369.40
Step by Step Solution
- Step 1: Write the proportion equation
38,656,173.20 : 57,991,258.20 = 19,438,566.80 : x - Step 2: Convert to fraction form
38,656,173.20/57,991,258.20 = 19,438,566.80/x - Step 3: Cross multiply
38,656,173.20x = 57,991,258.20 × 19,438,566.80 - Step 4: Simplify right side
38,656,173.20x = 1,127,266,946,336,747.75 - Step 5: Solve for x
x = 1,127,266,946,336,747.75/38,656,173.20 - Step 6: Final answer
x = 29,161,369.40
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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.