Finding the Fourth Proportional to 34,086,982.80, 47,039,961.12 and 18,617,068.08
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Solution
The fourth proportional to 34,086,982.80, 47,039,961.12 and 18,617,068.08 is: 25,691,512.91
Step by Step Solution
- Step 1: Write the proportion equation
34,086,982.80 : 47,039,961.12 = 18,617,068.08 : x - Step 2: Convert to fraction form
34,086,982.80/47,039,961.12 = 18,617,068.08/x - Step 3: Cross multiply
34,086,982.80x = 47,039,961.12 × 18,617,068.08 - Step 4: Simplify right side
34,086,982.80x = 875,746,158,651,592.88 - Step 5: Solve for x
x = 875,746,158,651,592.88/34,086,982.80 - Step 6: Final answer
x = 25,691,512.91
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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.