Finding the Fourth Proportional to 128,475,037.44, 177,295,709.52 and 69,737,669.28
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Solution
The fourth proportional to 128,475,037.44, 177,295,709.52 and 69,737,669.28 is: 96,238,069.29
Step by Step Solution
- Step 1: Write the proportion equation
128,475,037.44 : 177,295,709.52 = 69,737,669.28 : x - Step 2: Convert to fraction form
128,475,037.44/177,295,709.52 = 69,737,669.28/x - Step 3: Cross multiply
128,475,037.44x = 177,295,709.52 × 69,737,669.28 - Step 4: Simplify right side
128,475,037.44x = 12,364,189,555,268,708 - Step 5: Solve for x
x = 12,364,189,555,268,708/128,475,037.44 - Step 6: Final answer
x = 96,238,069.29
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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.