Finding the Fourth Proportional to 449,323,328.40, 673,984,992.60 and 376,763,917.20
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Solution
The fourth proportional to 449,323,328.40, 673,984,992.60 and 376,763,917.20 is: 565,145,875.80
Step by Step Solution
- Step 1: Write the proportion equation
449,323,328.40 : 673,984,992.60 = 376,763,917.20 : x - Step 2: Convert to fraction form
449,323,328.40/673,984,992.60 = 376,763,917.20/x - Step 3: Cross multiply
449,323,328.40x = 673,984,992.60 × 376,763,917.20 - Step 4: Simplify right side
449,323,328.40x = 253,933,225,945,989,024 - Step 5: Solve for x
x = 253,933,225,945,989,024/449,323,328.40 - Step 6: Final answer
x = 565,145,875.80
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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.