Finding the Fourth Proportional to 42,901,969.68, 59,149,146.78 and 27,787,324.73
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Solution
The fourth proportional to 42,901,969.68, 59,149,146.78 and 27,787,324.73 is: 38,310,514.90
Step by Step Solution
- Step 1: Write the proportion equation
42,901,969.68 : 59,149,146.78 = 27,787,324.73 : x - Step 2: Convert to fraction form
42,901,969.68/59,149,146.78 = 27,787,324.73/x - Step 3: Cross multiply
42,901,969.68x = 59,149,146.78 × 27,787,324.73 - Step 4: Simplify right side
42,901,969.68x = 1,643,596,548,782,548.25 - Step 5: Solve for x
x = 1,643,596,548,782,548.25/42,901,969.68 - Step 6: Final answer
x = 38,310,514.90
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.