Finding the Fourth Proportional to 15,136,051.49, 20,885,000.85 and 8,942,106.63
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Solution
The fourth proportional to 15,136,051.49, 20,885,000.85 and 8,942,106.63 is: 12,338,482.38
Step by Step Solution
- Step 1: Write the proportion equation
15,136,051.49 : 20,885,000.85 = 8,942,106.63 : x - Step 2: Convert to fraction form
15,136,051.49/20,885,000.85 = 8,942,106.63/x - Step 3: Cross multiply
15,136,051.49x = 20,885,000.85 × 8,942,106.63 - Step 4: Simplify right side
15,136,051.49x = 186,755,904,568,340.66 - Step 5: Solve for x
x = 186,755,904,568,340.66/15,136,051.49 - Step 6: Final answer
x = 12,338,482.38
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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.