Finding the Fourth Proportional to 119,460,067.74, 164,863,178.99 and 72,419,123.99
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Solution
The fourth proportional to 119,460,067.74, 164,863,178.99 and 72,419,123.99 is: 99,943,413.95
Step by Step Solution
- Step 1: Write the proportion equation
119,460,067.74 : 164,863,178.99 = 72,419,123.99 : x - Step 2: Convert to fraction form
119,460,067.74/164,863,178.99 = 72,419,123.99/x - Step 3: Cross multiply
119,460,067.74x = 164,863,178.99 × 72,419,123.99 - Step 4: Simplify right side
119,460,067.74x = 11,939,247,000,481,326 - Step 5: Solve for x
x = 11,939,247,000,481,326/119,460,067.74 - Step 6: Final answer
x = 99,943,413.95
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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.