Finding the Fourth Proportional to 18,320,534.20, 27,480,801.30 and 9,343,919.80
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Solution
The fourth proportional to 18,320,534.20, 27,480,801.30 and 9,343,919.80 is: 14,015,879.70
Step by Step Solution
- Step 1: Write the proportion equation
18,320,534.20 : 27,480,801.30 = 9,343,919.80 : x - Step 2: Convert to fraction form
18,320,534.20/27,480,801.30 = 9,343,919.80/x - Step 3: Cross multiply
18,320,534.20x = 27,480,801.30 × 9,343,919.80 - Step 4: Simplify right side
18,320,534.20x = 256,778,403,386,935.78 - Step 5: Solve for x
x = 256,778,403,386,935.78/18,320,534.20 - Step 6: Final answer
x = 14,015,879.70
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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.