Finding the Fourth Proportional to 15,573,136.29, 21,490,277.58 and 8,957,221.62
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Solution
The fourth proportional to 15,573,136.29, 21,490,277.58 and 8,957,221.62 is: 12,360,591.69
Step by Step Solution
- Step 1: Write the proportion equation
15,573,136.29 : 21,490,277.58 = 8,957,221.62 : x - Step 2: Convert to fraction form
15,573,136.29/21,490,277.58 = 8,957,221.62/x - Step 3: Cross multiply
15,573,136.29x = 21,490,277.58 × 8,957,221.62 - Step 4: Simplify right side
15,573,136.29x = 192,493,178,959,377.25 - Step 5: Solve for x
x = 192,493,178,959,377.25/15,573,136.29 - Step 6: Final answer
x = 12,360,591.69
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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.