Finding the Fourth Proportional to 618,224,021.80, 927,336,032.70 and 331,569,557.80
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Solution
The fourth proportional to 618,224,021.80, 927,336,032.70 and 331,569,557.80 is: 497,354,336.70
Step by Step Solution
- Step 1: Write the proportion equation
618,224,021.80 : 927,336,032.70 = 331,569,557.80 : x - Step 2: Convert to fraction form
618,224,021.80/927,336,032.70 = 331,569,557.80/x - Step 3: Cross multiply
618,224,021.80x = 927,336,032.70 × 331,569,557.80 - Step 4: Simplify right side
618,224,021.80x = 307,476,398,294,345,344 - Step 5: Solve for x
x = 307,476,398,294,345,344/618,224,021.80 - Step 6: Final answer
x = 497,354,336.70
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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.