Finding the Fourth Proportional to 355,966,164.53, 491,233,236.12 and 197,206,603.95
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Solution
The fourth proportional to 355,966,164.53, 491,233,236.12 and 197,206,603.95 is: 272,145,074.15
Step by Step Solution
- Step 1: Write the proportion equation
355,966,164.53 : 491,233,236.12 = 197,206,603.95 : x - Step 2: Convert to fraction form
355,966,164.53/491,233,236.12 = 197,206,603.95/x - Step 3: Cross multiply
355,966,164.53x = 491,233,236.12 × 197,206,603.95 - Step 4: Simplify right side
355,966,164.53x = 96,874,438,242,593,664 - Step 5: Solve for x
x = 96,874,438,242,593,664/355,966,164.53 - Step 6: Final answer
x = 272,145,074.15
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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.