Finding the Fourth Proportional to 80,093,982.84, 120,741,292.78 and 74,754,949.95
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Solution
The fourth proportional to 80,093,982.84, 120,741,292.78 and 74,754,949.95 is: 112,692,726.46
Step by Step Solution
- Step 1: Write the proportion equation
80,093,982.84 : 120,741,292.78 = 74,754,949.95 : x - Step 2: Convert to fraction form
80,093,982.84/120,741,292.78 = 74,754,949.95/x - Step 3: Cross multiply
80,093,982.84x = 120,741,292.78 × 74,754,949.95 - Step 4: Simplify right side
80,093,982.84x = 9,026,009,298,480,310 - Step 5: Solve for x
x = 9,026,009,298,480,310/80,093,982.84 - Step 6: Final answer
x = 112,692,726.46
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.