Finding the Fourth Proportional to 128,185,805.26, 176,896,171.92 and 69,449,930.20
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Solution
The fourth proportional to 128,185,805.26, 176,896,171.92 and 69,449,930.20 is: 95,840,774.00
Step by Step Solution
- Step 1: Write the proportion equation
128,185,805.26 : 176,896,171.92 = 69,449,930.20 : x - Step 2: Convert to fraction form
128,185,805.26/176,896,171.92 = 69,449,930.20/x - Step 3: Cross multiply
128,185,805.26x = 176,896,171.92 × 69,449,930.20 - Step 4: Simplify right side
128,185,805.26x = 12,285,426,792,491,200 - Step 5: Solve for x
x = 12,285,426,792,491,200/128,185,805.26 - Step 6: Final answer
x = 95,840,774.00
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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.