Finding the Fourth Proportional to 5,313,763.20, 7,332,387.60 and 2,990,206.92
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Solution
The fourth proportional to 5,313,763.20, 7,332,387.60 and 2,990,206.92 is: 4,126,144.75
Step by Step Solution
- Step 1: Write the proportion equation
5,313,763.20 : 7,332,387.60 = 2,990,206.92 : x - Step 2: Convert to fraction form
5,313,763.20/7,332,387.60 = 2,990,206.92/x - Step 3: Cross multiply
5,313,763.20x = 7,332,387.60 × 2,990,206.92 - Step 4: Simplify right side
5,313,763.20x = 21,925,356,141,642.19 - Step 5: Solve for x
x = 21,925,356,141,642.19/5,313,763.20 - Step 6: Final answer
x = 4,126,144.75
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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.