Finding the Fourth Proportional to 80,689,359.20, 120,960,555.60 and 29,559,048.80
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Solution
The fourth proportional to 80,689,359.20, 120,960,555.60 and 29,559,048.80 is: 44,311,653.99
Step by Step Solution
- Step 1: Write the proportion equation
80,689,359.20 : 120,960,555.60 = 29,559,048.80 : x - Step 2: Convert to fraction form
80,689,359.20/120,960,555.60 = 29,559,048.80/x - Step 3: Cross multiply
80,689,359.20x = 120,960,555.60 × 29,559,048.80 - Step 4: Simplify right side
80,689,359.20x = 3,575,478,965,855,513 - Step 5: Solve for x
x = 3,575,478,965,855,513/80,689,359.20 - Step 6: Final answer
x = 44,311,653.99
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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.