Finding the Fourth Proportional to 251,778,861.20, 377,668,291.80 and 149,490,246.80
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Solution
The fourth proportional to 251,778,861.20, 377,668,291.80 and 149,490,246.80 is: 224,235,370.20
Step by Step Solution
- Step 1: Write the proportion equation
251,778,861.20 : 377,668,291.80 = 149,490,246.80 : x - Step 2: Convert to fraction form
251,778,861.20/377,668,291.80 = 149,490,246.80/x - Step 3: Cross multiply
251,778,861.20x = 377,668,291.80 × 149,490,246.80 - Step 4: Simplify right side
251,778,861.20x = 56,457,726,149,716,424 - Step 5: Solve for x
x = 56,457,726,149,716,424/251,778,861.20 - Step 6: Final answer
x = 224,235,370.20
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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.