Finding the Fourth Proportional to 427,452,163.92, 589,885,121.88 and 231,881,875.92
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Solution
The fourth proportional to 427,452,163.92, 589,885,121.88 and 231,881,875.92 is: 319,997,604.84
Step by Step Solution
- Step 1: Write the proportion equation
427,452,163.92 : 589,885,121.88 = 231,881,875.92 : x - Step 2: Convert to fraction form
427,452,163.92/589,885,121.88 = 231,881,875.92/x - Step 3: Cross multiply
427,452,163.92x = 589,885,121.88 × 231,881,875.92 - Step 4: Simplify right side
427,452,163.92x = 136,783,668,638,832,224 - Step 5: Solve for x
x = 136,783,668,638,832,224/427,452,163.92 - Step 6: Final answer
x = 319,997,604.84
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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.