Finding the Fourth Proportional to 222,848,655.81, 307,540,749.84 and 123,729,408.09
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Solution
The fourth proportional to 222,848,655.81, 307,540,749.84 and 123,729,408.09 is: 170,751,915.93
Step by Step Solution
- Step 1: Write the proportion equation
222,848,655.81 : 307,540,749.84 = 123,729,408.09 : x - Step 2: Convert to fraction form
222,848,655.81/307,540,749.84 = 123,729,408.09/x - Step 3: Cross multiply
222,848,655.81x = 307,540,749.84 × 123,729,408.09 - Step 4: Simplify right side
222,848,655.81x = 38,051,834,941,257,960 - Step 5: Solve for x
x = 38,051,834,941,257,960/222,848,655.81 - Step 6: Final answer
x = 170,751,915.93
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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.