Finding the Fourth Proportional to 10,781,868.93, 16,177,853.79 and 5,313,983.01
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Solution
The fourth proportional to 10,781,868.93, 16,177,853.79 and 5,313,983.01 is: 7,973,463.67
Step by Step Solution
- Step 1: Write the proportion equation
10,781,868.93 : 16,177,853.79 = 5,313,983.01 : x - Step 2: Convert to fraction form
10,781,868.93/16,177,853.79 = 5,313,983.01/x - Step 3: Cross multiply
10,781,868.93x = 16,177,853.79 × 5,313,983.01 - Step 4: Simplify right side
10,781,868.93x = 85,968,840,178,324.09 - Step 5: Solve for x
x = 85,968,840,178,324.09/10,781,868.93 - Step 6: Final answer
x = 7,973,463.67
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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.