Finding the Fourth Proportional to 11,878,728.48, 16,392,655.80 and 6,446,220.48
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Solution
The fourth proportional to 11,878,728.48, 16,392,655.80 and 6,446,220.48 is: 8,895,789.96
Step by Step Solution
- Step 1: Write the proportion equation
11,878,728.48 : 16,392,655.80 = 6,446,220.48 : x - Step 2: Convert to fraction form
11,878,728.48/16,392,655.80 = 6,446,220.48/x - Step 3: Cross multiply
11,878,728.48x = 16,392,655.80 × 6,446,220.48 - Step 4: Simplify right side
11,878,728.48x = 105,670,673,539,550.80 - Step 5: Solve for x
x = 105,670,673,539,550.80/11,878,728.48 - Step 6: Final answer
x = 8,895,789.96
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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.