Finding the Fourth Proportional to 11,177,393.88, 15,415,781.58 and 7,505,203.80
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Solution
The fourth proportional to 11,177,393.88, 15,415,781.58 and 7,505,203.80 is: 10,351,123.32
Step by Step Solution
- Step 1: Write the proportion equation
11,177,393.88 : 15,415,781.58 = 7,505,203.80 : x - Step 2: Convert to fraction form
11,177,393.88/15,415,781.58 = 7,505,203.80/x - Step 3: Cross multiply
11,177,393.88x = 15,415,781.58 × 7,505,203.80 - Step 4: Simplify right side
11,177,393.88x = 115,698,582,494,186 - Step 5: Solve for x
x = 115,698,582,494,186/11,177,393.88 - Step 6: Final answer
x = 10,351,123.32
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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.