Finding the Fourth Proportional to 14,639,147.48, 20,202,069.68 and 8,112,886.76
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Solution
The fourth proportional to 14,639,147.48, 20,202,069.68 and 8,112,886.76 is: 11,195,809.31
Step by Step Solution
- Step 1: Write the proportion equation
14,639,147.48 : 20,202,069.68 = 8,112,886.76 : x - Step 2: Convert to fraction form
14,639,147.48/20,202,069.68 = 8,112,886.76/x - Step 3: Cross multiply
14,639,147.48x = 20,202,069.68 × 8,112,886.76 - Step 4: Simplify right side
14,639,147.48x = 163,897,103,631,469.44 - Step 5: Solve for x
x = 163,897,103,631,469.44/14,639,147.48 - Step 6: Final answer
x = 11,195,809.31
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1.5x scale
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.