Finding the Fourth Proportional to 216,036,315.68, 324,027,139.50 and 68,485,297.82
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Solution
The fourth proportional to 216,036,315.68, 324,027,139.50 and 68,485,297.82 is: 102,719,281.62
Step by Step Solution
- Step 1: Write the proportion equation
216,036,315.68 : 324,027,139.50 = 68,485,297.82 : x - Step 2: Convert to fraction form
216,036,315.68/324,027,139.50 = 68,485,297.82/x - Step 3: Cross multiply
216,036,315.68x = 324,027,139.50 × 68,485,297.82 - Step 4: Simplify right side
216,036,315.68x = 22,191,095,150,420,184 - Step 5: Solve for x
x = 22,191,095,150,420,184/216,036,315.68 - Step 6: Final answer
x = 102,719,281.62
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.