Finding the Fourth Proportional to 54,128,821.80, 81,193,232.70 and 26,839,326.45
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Solution
The fourth proportional to 54,128,821.80, 81,193,232.70 and 26,839,326.45 is: 40,258,989.68
Step by Step Solution
- Step 1: Write the proportion equation
54,128,821.80 : 81,193,232.70 = 26,839,326.45 : x - Step 2: Convert to fraction form
54,128,821.80/81,193,232.70 = 26,839,326.45/x - Step 3: Cross multiply
54,128,821.80x = 81,193,232.70 × 26,839,326.45 - Step 4: Simplify right side
54,128,821.80x = 2,179,171,677,966,115 - Step 5: Solve for x
x = 2,179,171,677,966,115/54,128,821.80 - Step 6: Final answer
x = 40,258,989.68
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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.