Finding the Fourth Proportional to 129,318,807.05, 194,003,804.64 and 47,438,400.63
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Solution
The fourth proportional to 129,318,807.05, 194,003,804.64 and 47,438,400.63 is: 71,166,989.69
Step by Step Solution
- Step 1: Write the proportion equation
129,318,807.05 : 194,003,804.64 = 47,438,400.63 : x - Step 2: Convert to fraction form
129,318,807.05/194,003,804.64 = 47,438,400.63/x - Step 3: Cross multiply
129,318,807.05x = 194,003,804.64 × 47,438,400.63 - Step 4: Simplify right side
129,318,807.05x = 9,203,230,208,256,572 - Step 5: Solve for x
x = 9,203,230,208,256,572/129,318,807.05 - Step 6: Final answer
x = 71,166,989.69
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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.