Finding the Fourth Proportional to 134,868,131.23, 186,118,018.84 and 72,988,469.79
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Solution
The fourth proportional to 134,868,131.23, 186,118,018.84 and 72,988,469.79 is: 100,724,087.09
Step by Step Solution
- Step 1: Write the proportion equation
134,868,131.23 : 186,118,018.84 = 72,988,469.79 : x - Step 2: Convert to fraction form
134,868,131.23/186,118,018.84 = 72,988,469.79/x - Step 3: Cross multiply
134,868,131.23x = 186,118,018.84 × 72,988,469.79 - Step 4: Simplify right side
134,868,131.23x = 13,584,469,395,477,992 - Step 5: Solve for x
x = 13,584,469,395,477,992/134,868,131.23 - Step 6: Final answer
x = 100,724,087.09
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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.