Finding the Fourth Proportional to 18,147,710.40, 27,221,565.60 and 16,762,027.20
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Solution
The fourth proportional to 18,147,710.40, 27,221,565.60 and 16,762,027.20 is: 25,143,040.80
Step by Step Solution
- Step 1: Write the proportion equation
18,147,710.40 : 27,221,565.60 = 16,762,027.20 : x - Step 2: Convert to fraction form
18,147,710.40/27,221,565.60 = 16,762,027.20/x - Step 3: Cross multiply
18,147,710.40x = 27,221,565.60 × 16,762,027.20 - Step 4: Simplify right side
18,147,710.40x = 456,288,623,013,784.31 - Step 5: Solve for x
x = 456,288,623,013,784.31/18,147,710.40 - Step 6: Final answer
x = 25,143,040.80
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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.