Finding the Fourth Proportional to 81,661,280.20, 112,692,515.34 and 44,991,850.84
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Solution
The fourth proportional to 81,661,280.20, 112,692,515.34 and 44,991,850.84 is: 62,088,725.88
Step by Step Solution
- Step 1: Write the proportion equation
81,661,280.20 : 112,692,515.34 = 44,991,850.84 : x - Step 2: Convert to fraction form
81,661,280.20/112,692,515.34 = 44,991,850.84/x - Step 3: Cross multiply
81,661,280.20x = 112,692,515.34 × 44,991,850.84 - Step 4: Simplify right side
81,661,280.20x = 5,070,244,840,961,692 - Step 5: Solve for x
x = 5,070,244,840,961,692/81,661,280.20 - Step 6: Final answer
x = 62,088,725.88
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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.