Finding the Fourth Proportional to 76,806,548.37, 115,209,939.21 and 31,368,342.87
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Solution
The fourth proportional to 76,806,548.37, 115,209,939.21 and 31,368,342.87 is: 47,052,561.95
Step by Step Solution
- Step 1: Write the proportion equation
76,806,548.37 : 115,209,939.21 = 31,368,342.87 : x - Step 2: Convert to fraction form
76,806,548.37/115,209,939.21 = 31,368,342.87/x - Step 3: Cross multiply
76,806,548.37x = 115,209,939.21 × 31,368,342.87 - Step 4: Simplify right side
76,806,548.37x = 3,613,944,875,171,137 - Step 5: Solve for x
x = 3,613,944,875,171,137/76,806,548.37 - Step 6: Final answer
x = 47,052,561.95
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.