Finding the Fourth Proportional to 115,066,672.21, 158,469,197.07 and 107,681,303.08
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Solution
The fourth proportional to 115,066,672.21, 158,469,197.07 and 107,681,303.08 is: 148,298,106.75
Step by Step Solution
- Step 1: Write the proportion equation
115,066,672.21 : 158,469,197.07 = 107,681,303.08 : x - Step 2: Convert to fraction form
115,066,672.21/158,469,197.07 = 107,681,303.08/x - Step 3: Cross multiply
115,066,672.21x = 158,469,197.07 × 107,681,303.08 - Step 4: Simplify right side
115,066,672.21x = 17,064,169,638,538,916 - Step 5: Solve for x
x = 17,064,169,638,538,916/115,066,672.21 - Step 6: Final answer
x = 148,298,106.75
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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.