Finding the Fourth Proportional to 20,768,794.74, 28,660,935.51 and 11,601,437.49
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Solution
The fourth proportional to 20,768,794.74, 28,660,935.51 and 11,601,437.49 is: 16,009,983.05
Step by Step Solution
- Step 1: Write the proportion equation
20,768,794.74 : 28,660,935.51 = 11,601,437.49 : x - Step 2: Convert to fraction form
20,768,794.74/28,660,935.51 = 11,601,437.49/x - Step 3: Cross multiply
20,768,794.74x = 28,660,935.51 × 11,601,437.49 - Step 4: Simplify right side
20,768,794.74x = 332,508,051,724,186.31 - Step 5: Solve for x
x = 332,508,051,724,186.31/20,768,794.74 - Step 6: Final answer
x = 16,009,983.05
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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.