Finding the Fourth Proportional to 11,985,057.99, 16,539,372.89 and 6,478,432.93
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Solution
The fourth proportional to 11,985,057.99, 16,539,372.89 and 6,478,432.93 is: 8,940,233.59
Step by Step Solution
- Step 1: Write the proportion equation
11,985,057.99 : 16,539,372.89 = 6,478,432.93 : x - Step 2: Convert to fraction form
11,985,057.99/16,539,372.89 = 6,478,432.93/x - Step 3: Cross multiply
11,985,057.99x = 16,539,372.89 × 6,478,432.93 - Step 4: Simplify right side
11,985,057.99x = 107,149,217,972,125.27 - Step 5: Solve for x
x = 107,149,217,972,125.27/11,985,057.99 - Step 6: Final answer
x = 8,940,233.59
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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.