Finding the Fourth Proportional to 216,855,360.12, 325,412,289.03 and 78,691,745.62
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Solution
The fourth proportional to 216,855,360.12, 325,412,289.03 and 78,691,745.62 is: 118,084,519.82
Step by Step Solution
- Step 1: Write the proportion equation
216,855,360.12 : 325,412,289.03 = 78,691,745.62 : x - Step 2: Convert to fraction form
216,855,360.12/325,412,289.03 = 78,691,745.62/x - Step 3: Cross multiply
216,855,360.12x = 325,412,289.03 × 78,691,745.62 - Step 4: Simplify right side
216,855,360.12x = 25,607,261,069,970,676 - Step 5: Solve for x
x = 25,607,261,069,970,676/216,855,360.12 - Step 6: Final answer
x = 118,084,519.82
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.