Finding the Fourth Proportional to 15,930,810.16, 23,913,939.60 and 8,252,405.44
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Solution
The fourth proportional to 15,930,810.16, 23,913,939.60 and 8,252,405.44 is: 12,387,789.65
Step by Step Solution
- Step 1: Write the proportion equation
15,930,810.16 : 23,913,939.60 = 8,252,405.44 : x - Step 2: Convert to fraction form
15,930,810.16/23,913,939.60 = 8,252,405.44/x - Step 3: Cross multiply
15,930,810.16x = 23,913,939.60 × 8,252,405.44 - Step 4: Simplify right side
15,930,810.16x = 197,347,525,246,871.44 - Step 5: Solve for x
x = 197,347,525,246,871.44/15,930,810.16 - Step 6: Final answer
x = 12,387,789.65
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1.5x scale
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.