Finding the Fourth Proportional to 79,885,416.80, 119,828,125.20 and 41,143,367.90
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Solution
The fourth proportional to 79,885,416.80, 119,828,125.20 and 41,143,367.90 is: 61,715,051.85
Step by Step Solution
- Step 1: Write the proportion equation
79,885,416.80 : 119,828,125.20 = 41,143,367.90 : x - Step 2: Convert to fraction form
79,885,416.80/119,828,125.20 = 41,143,367.90/x - Step 3: Cross multiply
79,885,416.80x = 119,828,125.20 × 41,143,367.90 - Step 4: Simplify right side
79,885,416.80x = 4,930,132,639,870,861 - Step 5: Solve for x
x = 4,930,132,639,870,861/79,885,416.80 - Step 6: Final answer
x = 61,715,051.85
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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.