Finding the Fourth Proportional to 215,664,828.80, 323,497,243.20 and 134,035,491.20
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Solution
The fourth proportional to 215,664,828.80, 323,497,243.20 and 134,035,491.20 is: 201,053,236.80
Step by Step Solution
- Step 1: Write the proportion equation
215,664,828.80 : 323,497,243.20 = 134,035,491.20 : x - Step 2: Convert to fraction form
215,664,828.80/323,497,243.20 = 134,035,491.20/x - Step 3: Cross multiply
215,664,828.80x = 323,497,243.20 × 134,035,491.20 - Step 4: Simplify right side
215,664,828.80x = 43,360,111,894,157,856 - Step 5: Solve for x
x = 43,360,111,894,157,856/215,664,828.80 - Step 6: Final answer
x = 201,053,236.80
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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.