Finding the Fourth Proportional to 11,471,642.40, 15,831,069.12 and 6,244,801.68
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Solution
The fourth proportional to 11,471,642.40, 15,831,069.12 and 6,244,801.68 is: 8,617,936.61
Step by Step Solution
- Step 1: Write the proportion equation
11,471,642.40 : 15,831,069.12 = 6,244,801.68 : x - Step 2: Convert to fraction form
11,471,642.40/15,831,069.12 = 6,244,801.68/x - Step 3: Cross multiply
11,471,642.40x = 15,831,069.12 × 6,244,801.68 - Step 4: Simplify right side
11,471,642.40x = 98,861,887,036,772.11 - Step 5: Solve for x
x = 98,861,887,036,772.11/11,471,642.40 - Step 6: Final answer
x = 8,617,936.61
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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.