Finding the Fourth Proportional to 74,481,603.98, 102,782,999.67 and 43,120,974.38
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Solution
The fourth proportional to 74,481,603.98, 102,782,999.67 and 43,120,974.38 is: 59,506,010.33
Step by Step Solution
- Step 1: Write the proportion equation
74,481,603.98 : 102,782,999.67 = 43,120,974.38 : x - Step 2: Convert to fraction form
74,481,603.98/102,782,999.67 = 43,120,974.38/x - Step 3: Cross multiply
74,481,603.98x = 102,782,999.67 × 43,120,974.38 - Step 4: Simplify right side
74,481,603.98x = 4,432,103,095,469,619 - Step 5: Solve for x
x = 4,432,103,095,469,619/74,481,603.98 - Step 6: Final answer
x = 59,506,010.33
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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.