Finding the Fourth Proportional to 136,645,541.73, 188,570,431.44 and 73,921,620.15
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Solution
The fourth proportional to 136,645,541.73, 188,570,431.44 and 73,921,620.15 is: 102,011,610.68
Step by Step Solution
- Step 1: Write the proportion equation
136,645,541.73 : 188,570,431.44 = 73,921,620.15 : x - Step 2: Convert to fraction form
136,645,541.73/188,570,431.44 = 73,921,620.15/x - Step 3: Cross multiply
136,645,541.73x = 188,570,431.44 × 73,921,620.15 - Step 4: Simplify right side
136,645,541.73x = 13,939,431,804,429,298 - Step 5: Solve for x
x = 13,939,431,804,429,298/136,645,541.73 - Step 6: Final answer
x = 102,011,610.68
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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.