Finding the Fourth Proportional to 36,749,989.70, 55,133,289.31 and 12,157,858.63
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Solution
The fourth proportional to 36,749,989.70, 55,133,289.31 and 12,157,858.63 is: 18,239,535.38
Step by Step Solution
- Step 1: Write the proportion equation
36,749,989.70 : 55,133,289.31 = 12,157,858.63 : x - Step 2: Convert to fraction form
36,749,989.70/55,133,289.31 = 12,157,858.63/x - Step 3: Cross multiply
36,749,989.70x = 55,133,289.31 × 12,157,858.63 - Step 4: Simplify right side
36,749,989.70x = 670,302,737,237,870.38 - Step 5: Solve for x
x = 670,302,737,237,870.38/36,749,989.70 - Step 6: Final answer
x = 18,239,535.38
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.