Finding the Fourth Proportional to 38,898,542.08, 53,679,855.36 and 21,494,402.56
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Solution
The fourth proportional to 38,898,542.08, 53,679,855.36 and 21,494,402.56 is: 29,662,202.20
Step by Step Solution
- Step 1: Write the proportion equation
38,898,542.08 : 53,679,855.36 = 21,494,402.56 : x - Step 2: Convert to fraction form
38,898,542.08/53,679,855.36 = 21,494,402.56/x - Step 3: Cross multiply
38,898,542.08x = 53,679,855.36 × 21,494,402.56 - Step 4: Simplify right side
38,898,542.08x = 1,153,816,420,470,413.75 - Step 5: Solve for x
x = 1,153,816,420,470,413.75/38,898,542.08 - Step 6: Final answer
x = 29,662,202.20
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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.