Finding the Fourth Proportional to 18,863,532.80, 28,295,263.90 and 5,910,675.08
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Solution
The fourth proportional to 18,863,532.80, 28,295,263.90 and 5,910,675.08 is: 8,866,001.56
Step by Step Solution
- Step 1: Write the proportion equation
18,863,532.80 : 28,295,263.90 = 5,910,675.08 : x - Step 2: Convert to fraction form
18,863,532.80/28,295,263.90 = 5,910,675.08/x - Step 3: Cross multiply
18,863,532.80x = 28,295,263.90 × 5,910,675.08 - Step 4: Simplify right side
18,863,532.80x = 167,244,111,215,753.59 - Step 5: Solve for x
x = 167,244,111,215,753.59/18,863,532.80 - Step 6: Final answer
x = 8,866,001.56
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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.