Finding the Fourth Proportional to 874,255,750.92, 1,311,239,983.56 and 313,901,580.30
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Solution
The fourth proportional to 874,255,750.92, 1,311,239,983.56 and 313,901,580.30 is: 470,800,795.49
Step by Step Solution
- Step 1: Write the proportion equation
874,255,750.92 : 1,311,239,983.56 = 313,901,580.30 : x - Step 2: Convert to fraction form
874,255,750.92/1,311,239,983.56 = 313,901,580.30/x - Step 3: Cross multiply
874,255,750.92x = 1,311,239,983.56 × 313,901,580.30 - Step 4: Simplify right side
874,255,750.92x = 411,600,302,992,030,016 - Step 5: Solve for x
x = 411,600,302,992,030,016/874,255,750.92 - Step 6: Final answer
x = 470,800,795.49
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1.5x scale
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.