Finding the Fourth Proportional to 22,165,238.81, 30,587,739.84 and 12,375,849.62
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Solution
The fourth proportional to 22,165,238.81, 30,587,739.84 and 12,375,849.62 is: 17,078,510.71
Step by Step Solution
- Step 1: Write the proportion equation
22,165,238.81 : 30,587,739.84 = 12,375,849.62 : x - Step 2: Convert to fraction form
22,165,238.81/30,587,739.84 = 12,375,849.62/x - Step 3: Cross multiply
22,165,238.81x = 30,587,739.84 × 12,375,849.62 - Step 4: Simplify right side
22,165,238.81x = 378,549,268,551,992.25 - Step 5: Solve for x
x = 378,549,268,551,992.25/22,165,238.81 - Step 6: Final answer
x = 17,078,510.71
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.