Finding the Fourth Proportional to 6,539,740.84, 9,811,711.60 and 1,991,669.42
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Solution
The fourth proportional to 6,539,740.84, 9,811,711.60 and 1,991,669.42 is: 2,988,143.79
Step by Step Solution
- Step 1: Write the proportion equation
6,539,740.84 : 9,811,711.60 = 1,991,669.42 : x - Step 2: Convert to fraction form
6,539,740.84/9,811,711.60 = 1,991,669.42/x - Step 3: Cross multiply
6,539,740.84x = 9,811,711.60 × 1,991,669.42 - Step 4: Simplify right side
6,539,740.84x = 19,541,685,951,579.27 - Step 5: Solve for x
x = 19,541,685,951,579.27/6,539,740.84 - Step 6: Final answer
x = 2,988,143.79
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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.