Finding the Fourth Proportional to 7,991,141.68, 11,982,985.83 and 4,151,931.97
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Solution
The fourth proportional to 7,991,141.68, 11,982,985.83 and 4,151,931.97 is: 6,225,961.69
Step by Step Solution
- Step 1: Write the proportion equation
7,991,141.68 : 11,982,985.83 = 4,151,931.97 : x - Step 2: Convert to fraction form
7,991,141.68/11,982,985.83 = 4,151,931.97/x - Step 3: Cross multiply
7,991,141.68x = 11,982,985.83 × 4,151,931.97 - Step 4: Simplify right side
7,991,141.68x = 49,752,541,963,633.98 - Step 5: Solve for x
x = 49,752,541,963,633.98/7,991,141.68 - Step 6: Final answer
x = 6,225,961.69
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1.5x scale
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.