Finding the Fourth Proportional to 28,828,273.48, 39,783,013.68 and 15,775,528.95
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Solution
The fourth proportional to 28,828,273.48, 39,783,013.68 and 15,775,528.95 is: 21,770,227.92
Step by Step Solution
- Step 1: Write the proportion equation
28,828,273.48 : 39,783,013.68 = 15,775,528.95 : x - Step 2: Convert to fraction form
28,828,273.48/39,783,013.68 = 15,775,528.95/x - Step 3: Cross multiply
28,828,273.48x = 39,783,013.68 × 15,775,528.95 - Step 4: Simplify right side
28,828,273.48x = 627,598,084,086,244.25 - Step 5: Solve for x
x = 627,598,084,086,244.25/28,828,273.48 - Step 6: Final answer
x = 21,770,227.92
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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.