Finding the Fourth Proportional to 120,405,974.18, 166,174,028.57 and 67,496,972.02
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Solution
The fourth proportional to 120,405,974.18, 166,174,028.57 and 67,496,972.02 is: 93,153,548.51
Step by Step Solution
- Step 1: Write the proportion equation
120,405,974.18 : 166,174,028.57 = 67,496,972.02 : x - Step 2: Convert to fraction form
120,405,974.18/166,174,028.57 = 67,496,972.02/x - Step 3: Cross multiply
120,405,974.18x = 166,174,028.57 × 67,496,972.02 - Step 4: Simplify right side
120,405,974.18x = 11,216,243,756,593,278 - Step 5: Solve for x
x = 11,216,243,756,593,278/120,405,974.18 - Step 6: Final answer
x = 93,153,548.51
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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.