Finding the Fourth Proportional to 354,157,844.49, 488,738,477.52 and 197,535,046.68
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Solution
The fourth proportional to 354,157,844.49, 488,738,477.52 and 197,535,046.68 is: 272,598,728.15
Step by Step Solution
- Step 1: Write the proportion equation
354,157,844.49 : 488,738,477.52 = 197,535,046.68 : x - Step 2: Convert to fraction form
354,157,844.49/488,738,477.52 = 197,535,046.68/x - Step 3: Cross multiply
354,157,844.49x = 488,738,477.52 × 197,535,046.68 - Step 4: Simplify right side
354,157,844.49x = 96,542,977,971,225,328 - Step 5: Solve for x
x = 96,542,977,971,225,328/354,157,844.49 - Step 6: Final answer
x = 272,598,728.15
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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.