Finding the Fourth Proportional to 15,136,051.99, 20,885,001.54 and 8,942,107.13
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Solution
The fourth proportional to 15,136,051.99, 20,885,001.54 and 8,942,107.13 is: 12,338,483.07
Step by Step Solution
- Step 1: Write the proportion equation
15,136,051.99 : 20,885,001.54 = 8,942,107.13 : x - Step 2: Convert to fraction form
15,136,051.99/20,885,001.54 = 8,942,107.13/x - Step 3: Cross multiply
15,136,051.99x = 20,885,001.54 × 8,942,107.13 - Step 4: Simplify right side
15,136,051.99x = 186,755,921,180,895 - Step 5: Solve for x
x = 186,755,921,180,895/15,136,051.99 - Step 6: Final answer
x = 12,338,483.07
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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.