Finding the Fourth Proportional to 213,848,986.68, 320,908,418.44 and 91,027,107.98
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Solution
The fourth proportional to 213,848,986.68, 320,908,418.44 and 91,027,107.98 is: 136,598,099.95
Step by Step Solution
- Step 1: Write the proportion equation
213,848,986.68 : 320,908,418.44 = 91,027,107.98 : x - Step 2: Convert to fraction form
213,848,986.68/320,908,418.44 = 91,027,107.98/x - Step 3: Cross multiply
213,848,986.68x = 320,908,418.44 × 91,027,107.98 - Step 4: Simplify right side
213,848,986.68x = 29,211,365,257,028,904 - Step 5: Solve for x
x = 29,211,365,257,028,904/213,848,986.68 - Step 6: Final answer
x = 136,598,099.95
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.