Finding the Fourth Proportional to 76,806,541.23, 115,209,928.49 and 31,368,335.73
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Solution
The fourth proportional to 76,806,541.23, 115,209,928.49 and 31,368,335.73 is: 47,052,551.23
Step by Step Solution
- Step 1: Write the proportion equation
76,806,541.23 : 115,209,928.49 = 31,368,335.73 : x - Step 2: Convert to fraction form
76,806,541.23/115,209,928.49 = 31,368,335.73/x - Step 3: Cross multiply
76,806,541.23x = 115,209,928.49 × 31,368,335.73 - Step 4: Simplify right side
76,806,541.23x = 3,613,943,716,146,770.50 - Step 5: Solve for x
x = 3,613,943,716,146,770.50/76,806,541.23 - Step 6: Final answer
x = 47,052,551.23
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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.