Finding the Fourth Proportional to 265,468,267.20, 398,202,400.80 and 220,118,635.20
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Solution
The fourth proportional to 265,468,267.20, 398,202,400.80 and 220,118,635.20 is: 330,177,952.80
Step by Step Solution
- Step 1: Write the proportion equation
265,468,267.20 : 398,202,400.80 = 220,118,635.20 : x - Step 2: Convert to fraction form
265,468,267.20/398,202,400.80 = 220,118,635.20/x - Step 3: Cross multiply
265,468,267.20x = 398,202,400.80 × 220,118,635.20 - Step 4: Simplify right side
265,468,267.20x = 87,651,768,997,459,392 - Step 5: Solve for x
x = 87,651,768,997,459,392/265,468,267.20 - Step 6: Final answer
x = 330,177,952.80
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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.