Finding the Fourth Proportional to 7,042,844.84, 9,718,950.60 and 3,945,347.68
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Solution
The fourth proportional to 7,042,844.84, 9,718,950.60 and 3,945,347.68 is: 5,444,481.61
Step by Step Solution
- Step 1: Write the proportion equation
7,042,844.84 : 9,718,950.60 = 3,945,347.68 : x - Step 2: Convert to fraction form
7,042,844.84/9,718,950.60 = 3,945,347.68/x - Step 3: Cross multiply
7,042,844.84x = 9,718,950.60 × 3,945,347.68 - Step 4: Simplify right side
7,042,844.84x = 38,344,639,201,744.61 - Step 5: Solve for x
x = 38,344,639,201,744.61/7,042,844.84 - Step 6: Final answer
x = 5,444,481.61
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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.