Finding the Fourth Proportional to 106,438,273.20, 159,657,409.80 and 68,174,521.20
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Solution
The fourth proportional to 106,438,273.20, 159,657,409.80 and 68,174,521.20 is: 102,261,781.80
Step by Step Solution
- Step 1: Write the proportion equation
106,438,273.20 : 159,657,409.80 = 68,174,521.20 : x - Step 2: Convert to fraction form
106,438,273.20/159,657,409.80 = 68,174,521.20/x - Step 3: Cross multiply
106,438,273.20x = 159,657,409.80 × 68,174,521.20 - Step 4: Simplify right side
106,438,273.20x = 10,884,567,469,147,190 - Step 5: Solve for x
x = 10,884,567,469,147,190/106,438,273.20 - Step 6: Final answer
x = 102,261,781.80
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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.