Finding the Fourth Proportional to 318,733,211.28, 439,847,360.49 and 177,610,379.74
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Solution
The fourth proportional to 318,733,211.28, 439,847,360.49 and 177,610,379.74 is: 245,099,832.59
Step by Step Solution
- Step 1: Write the proportion equation
318,733,211.28 : 439,847,360.49 = 177,610,379.74 : x - Step 2: Convert to fraction form
318,733,211.28/439,847,360.49 = 177,610,379.74/x - Step 3: Cross multiply
318,733,211.28x = 439,847,360.49 × 177,610,379.74 - Step 4: Simplify right side
318,733,211.28x = 78,121,456,724,265,584 - Step 5: Solve for x
x = 78,121,456,724,265,584/318,733,211.28 - Step 6: Final answer
x = 245,099,832.59
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.