Finding the Fourth Proportional to 38,782,295.44, 53,519,940.34 and 21,379,263.46
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Solution
The fourth proportional to 38,782,295.44, 53,519,940.34 and 21,379,263.46 is: 29,503,588.99
Step by Step Solution
- Step 1: Write the proportion equation
38,782,295.44 : 53,519,940.34 = 21,379,263.46 : x - Step 2: Convert to fraction form
38,782,295.44/53,519,940.34 = 21,379,263.46/x - Step 3: Cross multiply
38,782,295.44x = 53,519,940.34 × 21,379,263.46 - Step 4: Simplify right side
38,782,295.44x = 1,144,216,904,705,094 - Step 5: Solve for x
x = 1,144,216,904,705,094/38,782,295.44 - Step 6: Final answer
x = 29,503,588.99
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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.