Finding the Fourth Proportional to 13,888,896.20, 20,833,346.70 and 5,797,457.80
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Solution
The fourth proportional to 13,888,896.20, 20,833,346.70 and 5,797,457.80 is: 8,696,187.70
Step by Step Solution
- Step 1: Write the proportion equation
13,888,896.20 : 20,833,346.70 = 5,797,457.80 : x - Step 2: Convert to fraction form
13,888,896.20/20,833,346.70 = 5,797,457.80/x - Step 3: Cross multiply
13,888,896.20x = 20,833,346.70 × 5,797,457.80 - Step 4: Simplify right side
13,888,896.20x = 120,780,448,326,019.25 - Step 5: Solve for x
x = 120,780,448,326,019.25/13,888,896.20 - Step 6: Final answer
x = 8,696,187.70
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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.