Finding the Fourth Proportional to 18,155,134.20, 27,232,701.30 and 6,640,579.20
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Solution
The fourth proportional to 18,155,134.20, 27,232,701.30 and 6,640,579.20 is: 9,960,868.80
Step by Step Solution
- Step 1: Write the proportion equation
18,155,134.20 : 27,232,701.30 = 6,640,579.20 : x - Step 2: Convert to fraction form
18,155,134.20/27,232,701.30 = 6,640,579.20/x - Step 3: Cross multiply
18,155,134.20x = 27,232,701.30 × 6,640,579.20 - Step 4: Simplify right side
18,155,134.20x = 180,840,909,812,592.97 - Step 5: Solve for x
x = 180,840,909,812,592.97/18,155,134.20 - Step 6: Final answer
x = 9,960,868.80
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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.