Finding the Fourth Proportional to 115,066,671.21, 158,469,195.69 and 107,681,302.08
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Solution
The fourth proportional to 115,066,671.21, 158,469,195.69 and 107,681,302.08 is: 148,298,105.37
Step by Step Solution
- Step 1: Write the proportion equation
115,066,671.21 : 158,469,195.69 = 107,681,302.08 : x - Step 2: Convert to fraction form
115,066,671.21/158,469,195.69 = 107,681,302.08/x - Step 3: Cross multiply
115,066,671.21x = 158,469,195.69 × 107,681,302.08 - Step 4: Simplify right side
115,066,671.21x = 17,064,169,331,469,524 - Step 5: Solve for x
x = 17,064,169,331,469,524/115,066,671.21 - Step 6: Final answer
x = 148,298,105.37
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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.