Finding the Fourth Proportional to 11,334,877.97, 15,642,136.08 and 6,440,106.47
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Solution
The fourth proportional to 11,334,877.97, 15,642,136.08 and 6,440,106.47 is: 8,887,349.47
Step by Step Solution
- Step 1: Write the proportion equation
11,334,877.97 : 15,642,136.08 = 6,440,106.47 : x - Step 2: Convert to fraction form
11,334,877.97/15,642,136.08 = 6,440,106.47/x - Step 3: Cross multiply
11,334,877.97x = 15,642,136.08 × 6,440,106.47 - Step 4: Simplify right side
11,334,877.97x = 100,737,021,695,217.75 - Step 5: Solve for x
x = 100,737,021,695,217.75/11,334,877.97 - Step 6: Final answer
x = 8,887,349.47
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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.