Finding the Fourth Proportional to 727,823,144.99, 1,090,623,801.67 and 432,135,997.38
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Solution
The fourth proportional to 727,823,144.99, 1,090,623,801.67 and 432,135,997.38 is: 647,544,403.53
Step by Step Solution
- Step 1: Write the proportion equation
727,823,144.99 : 1,090,623,801.67 = 432,135,997.38 : x - Step 2: Convert to fraction form
727,823,144.99/1,090,623,801.67 = 432,135,997.38/x - Step 3: Cross multiply
727,823,144.99x = 1,090,623,801.67 × 432,135,997.38 - Step 4: Simplify right side
727,823,144.99x = 471,297,804,299,952,448 - Step 5: Solve for x
x = 471,297,804,299,952,448/727,823,144.99 - Step 6: Final answer
x = 647,544,403.53
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1.5x scale
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.