Finding the Fourth Proportional to 11,656,561.48, 17,490,737.91 and 7,768,671.53
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Solution
The fourth proportional to 11,656,561.48, 17,490,737.91 and 7,768,671.53 is: 11,656,936.55
Step by Step Solution
- Step 1: Write the proportion equation
11,656,561.48 : 17,490,737.91 = 7,768,671.53 : x - Step 2: Convert to fraction form
11,656,561.48/17,490,737.91 = 7,768,671.53/x - Step 3: Cross multiply
11,656,561.48x = 17,490,737.91 × 7,768,671.53 - Step 4: Simplify right side
11,656,561.48x = 135,879,797,640,108.70 - Step 5: Solve for x
x = 135,879,797,640,108.70/11,656,561.48 - Step 6: Final answer
x = 11,656,936.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.