Finding the Fourth Proportional to 7,382,842.20, 11,074,263.30 and 4,347,091.80
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Solution
The fourth proportional to 7,382,842.20, 11,074,263.30 and 4,347,091.80 is: 6,520,637.70
Step by Step Solution
- Step 1: Write the proportion equation
7,382,842.20 : 11,074,263.30 = 4,347,091.80 : x - Step 2: Convert to fraction form
7,382,842.20/11,074,263.30 = 4,347,091.80/x - Step 3: Cross multiply
7,382,842.20x = 11,074,263.30 × 4,347,091.80 - Step 4: Simplify right side
7,382,842.20x = 48,140,839,182,470.94 - Step 5: Solve for x
x = 48,140,839,182,470.94/7,382,842.20 - Step 6: Final answer
x = 6,520,637.70
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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.