Finding the Fourth Proportional to 53,310,337.80, 79,965,509.94 and 12,920,821.80
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Solution
The fourth proportional to 53,310,337.80, 79,965,509.94 and 12,920,821.80 is: 19,381,233.49
Step by Step Solution
- Step 1: Write the proportion equation
53,310,337.80 : 79,965,509.94 = 12,920,821.80 : x - Step 2: Convert to fraction form
53,310,337.80/79,965,509.94 = 12,920,821.80/x - Step 3: Cross multiply
53,310,337.80x = 79,965,509.94 × 12,920,821.80 - Step 4: Simplify right side
53,310,337.80x = 1,033,220,104,080,868.75 - Step 5: Solve for x
x = 1,033,220,104,080,868.75/53,310,337.80 - Step 6: Final answer
x = 19,381,233.49
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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.