Finding the Fourth Proportional to 84,185,611, 115,332,357.14 and 81,038,140.44
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Solution
The fourth proportional to 84,185,611, 115,332,357.14 and 81,038,140.44 is: 111,020,394.63
Step by Step Solution
- Step 1: Write the proportion equation
84,185,611 : 115,332,357.14 = 81,038,140.44 : x - Step 2: Convert to fraction form
84,185,611/115,332,357.14 = 81,038,140.44/x - Step 3: Cross multiply
84,185,611x = 115,332,357.14 × 81,038,140.44 - Step 4: Simplify right side
84,185,611x = 9,346,319,755,187,556 - Step 5: Solve for x
x = 9,346,319,755,187,556/84,185,611 - Step 6: Final answer
x = 111,020,394.63
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.