Finding the Fourth Proportional to 38,564,770.75, 57,816,719.19 and 19,120,590.20
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Solution
The fourth proportional to 38,564,770.75, 57,816,719.19 and 19,120,590.20 is: 28,665,794.53
Step by Step Solution
- Step 1: Write the proportion equation
38,564,770.75 : 57,816,719.19 = 19,120,590.20 : x - Step 2: Convert to fraction form
38,564,770.75/57,816,719.19 = 19,120,590.20/x - Step 3: Cross multiply
38,564,770.75x = 57,816,719.19 × 19,120,590.20 - Step 4: Simplify right side
38,564,770.75x = 1,105,489,794,485,007.75 - Step 5: Solve for x
x = 1,105,489,794,485,007.75/38,564,770.75 - Step 6: Final answer
x = 28,665,794.53
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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.