Finding the Fourth Proportional to 18,125,830.74, 27,188,008.68 and 4,478,633.42
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Solution
The fourth proportional to 18,125,830.74, 27,188,008.68 and 4,478,633.42 is: 6,717,767.92
Step by Step Solution
- Step 1: Write the proportion equation
18,125,830.74 : 27,188,008.68 = 4,478,633.42 : x - Step 2: Convert to fraction form
18,125,830.74/27,188,008.68 = 4,478,633.42/x - Step 3: Cross multiply
18,125,830.74x = 27,188,008.68 × 4,478,633.42 - Step 4: Simplify right side
18,125,830.74x = 121,765,124,297,498.08 - Step 5: Solve for x
x = 121,765,124,297,498.08/18,125,830.74 - Step 6: Final answer
x = 6,717,767.92
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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.