Finding the Fourth Proportional to 128,203,185.64, 176,920,552.48 and 69,465,804.44
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Solution
The fourth proportional to 128,203,185.64, 176,920,552.48 and 69,465,804.44 is: 95,862,894.82
Step by Step Solution
- Step 1: Write the proportion equation
128,203,185.64 : 176,920,552.48 = 69,465,804.44 : x - Step 2: Convert to fraction form
128,203,185.64/176,920,552.48 = 69,465,804.44/x - Step 3: Cross multiply
128,203,185.64x = 176,920,552.48 × 69,465,804.44 - Step 4: Simplify right side
128,203,185.64x = 12,289,928,499,992,436 - Step 5: Solve for x
x = 12,289,928,499,992,436/128,203,185.64 - Step 6: Final answer
x = 95,862,894.82
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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.