Finding the Fourth Proportional to 12,216,141.08, 18,317,932.48 and 6,461,969.12
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Solution
The fourth proportional to 12,216,141.08, 18,317,932.48 and 6,461,969.12 is: 9,689,632.20
Step by Step Solution
- Step 1: Write the proportion equation
12,216,141.08 : 18,317,932.48 = 6,461,969.12 : x - Step 2: Convert to fraction form
12,216,141.08/18,317,932.48 = 6,461,969.12/x - Step 3: Cross multiply
12,216,141.08x = 18,317,932.48 × 6,461,969.12 - Step 4: Simplify right side
12,216,141.08x = 118,369,914,028,005.02 - Step 5: Solve for x
x = 118,369,914,028,005.02/12,216,141.08 - Step 6: Final answer
x = 9,689,632.20
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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.