Finding the Fourth Proportional to 18,011,690.37, 24,855,835.97 and 9,751,686.62
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Solution
The fourth proportional to 18,011,690.37, 24,855,835.97 and 9,751,686.62 is: 13,457,166.87
Step by Step Solution
- Step 1: Write the proportion equation
18,011,690.37 : 24,855,835.97 = 9,751,686.62 : x - Step 2: Convert to fraction form
18,011,690.37/24,855,835.97 = 9,751,686.62/x - Step 3: Cross multiply
18,011,690.37x = 24,855,835.97 × 9,751,686.62 - Step 4: Simplify right side
18,011,690.37x = 242,386,322,957,663.75 - Step 5: Solve for x
x = 242,386,322,957,663.75/18,011,690.37 - Step 6: Final answer
x = 13,457,166.87
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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.