Finding the Fourth Proportional to 7,115,347.48, 9,819,183 and 3,852,162.76
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Solution
The fourth proportional to 7,115,347.48, 9,819,183 and 3,852,162.76 is: 5,315,986.49
Step by Step Solution
- Step 1: Write the proportion equation
7,115,347.48 : 9,819,183 = 3,852,162.76 : x - Step 2: Convert to fraction form
7,115,347.48/9,819,183 = 3,852,162.76/x - Step 3: Cross multiply
7,115,347.48x = 9,819,183 × 3,852,162.76 - Step 4: Simplify right side
7,115,347.48x = 37,825,091,086,225.08 - Step 5: Solve for x
x = 37,825,091,086,225.08/7,115,347.48 - Step 6: Final answer
x = 5,315,986.49
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1.5x scale
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.