Finding the Fourth Proportional to 18,230,809.20, 27,346,213.80 and 4,767,637.20
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Solution
The fourth proportional to 18,230,809.20, 27,346,213.80 and 4,767,637.20 is: 7,151,455.80
Step by Step Solution
- Step 1: Write the proportion equation
18,230,809.20 : 27,346,213.80 = 4,767,637.20 : x - Step 2: Convert to fraction form
18,230,809.20/27,346,213.80 = 4,767,637.20/x - Step 3: Cross multiply
18,230,809.20x = 27,346,213.80 × 4,767,637.20 - Step 4: Simplify right side
18,230,809.20x = 130,376,826,192,033.38 - Step 5: Solve for x
x = 130,376,826,192,033.38/18,230,809.20 - Step 6: Final answer
x = 7,151,455.80
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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.