Finding the Fourth Proportional to 10,679,918.88, 14,738,358.81 and 5,785,140.92
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Solution
The fourth proportional to 10,679,918.88, 14,738,358.81 and 5,785,140.92 is: 7,983,532.79
Step by Step Solution
- Step 1: Write the proportion equation
10,679,918.88 : 14,738,358.81 = 5,785,140.92 : x - Step 2: Convert to fraction form
10,679,918.88/14,738,358.81 = 5,785,140.92/x - Step 3: Cross multiply
10,679,918.88x = 14,738,358.81 × 5,785,140.92 - Step 4: Simplify right side
10,679,918.88x = 85,263,482,571,681.72 - Step 5: Solve for x
x = 85,263,482,571,681.72/10,679,918.88 - Step 6: Final answer
x = 7,983,532.79
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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.