Finding the Fourth Proportional to 15,134,136.54, 20,885,549.49 and 8,259,061.44
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Solution
The fourth proportional to 15,134,136.54, 20,885,549.49 and 8,259,061.44 is: 11,397,745.49
Step by Step Solution
- Step 1: Write the proportion equation
15,134,136.54 : 20,885,549.49 = 8,259,061.44 : x - Step 2: Convert to fraction form
15,134,136.54/20,885,549.49 = 8,259,061.44/x - Step 3: Cross multiply
15,134,136.54x = 20,885,549.49 × 8,259,061.44 - Step 4: Simplify right side
15,134,136.54x = 172,495,036,446,070.66 - Step 5: Solve for x
x = 172,495,036,446,070.66/15,134,136.54 - Step 6: Final answer
x = 11,397,745.49
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1.5x scale
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.