Finding the Fourth Proportional to 7,945,470.81, 11,918,246.38 and 2,480,107.48
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Solution
The fourth proportional to 7,945,470.81, 11,918,246.38 and 2,480,107.48 is: 3,720,173.75
Step by Step Solution
- Step 1: Write the proportion equation
7,945,470.81 : 11,918,246.38 = 2,480,107.48 : x - Step 2: Convert to fraction form
7,945,470.81/11,918,246.38 = 2,480,107.48/x - Step 3: Cross multiply
7,945,470.81x = 11,918,246.38 × 2,480,107.48 - Step 4: Simplify right side
7,945,470.81x = 29,558,531,935,929.70 - Step 5: Solve for x
x = 29,558,531,935,929.70/7,945,470.81 - Step 6: Final answer
x = 3,720,173.75
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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.