Finding the Fourth Proportional to 81,776,522.80, 122,560,585.80 and 43,456,394.80
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Solution
The fourth proportional to 81,776,522.80, 122,560,585.80 and 43,456,394.80 is: 65,129,220.72
Step by Step Solution
- Step 1: Write the proportion equation
81,776,522.80 : 122,560,585.80 = 43,456,394.80 : x - Step 2: Convert to fraction form
81,776,522.80/122,560,585.80 = 43,456,394.80/x - Step 3: Cross multiply
81,776,522.80x = 122,560,585.80 × 43,456,394.80 - Step 4: Simplify right side
81,776,522.80x = 5,326,041,203,444,073 - Step 5: Solve for x
x = 5,326,041,203,444,073/81,776,522.80 - Step 6: Final answer
x = 65,129,220.72
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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.