Finding the Fourth Proportional to 18,147,349.80, 27,228,897.90 and 9,171,901.80
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Solution
The fourth proportional to 18,147,349.80, 27,228,897.90 and 9,171,901.80 is: 13,761,831.92
Step by Step Solution
- Step 1: Write the proportion equation
18,147,349.80 : 27,228,897.90 = 9,171,901.80 : x - Step 2: Convert to fraction form
18,147,349.80/27,228,897.90 = 9,171,901.80/x - Step 3: Cross multiply
18,147,349.80x = 27,228,897.90 × 9,171,901.80 - Step 4: Simplify right side
18,147,349.80x = 249,740,777,661,026.22 - Step 5: Solve for x
x = 249,740,777,661,026.22/18,147,349.80 - Step 6: Final answer
x = 13,761,831.92
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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.