Finding the Fourth Proportional to 141,729,249.76, 195,586,363.07 and 76,539,153.76
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Solution
The fourth proportional to 141,729,249.76, 195,586,363.07 and 76,539,153.76 is: 105,624,031.33
Step by Step Solution
- Step 1: Write the proportion equation
141,729,249.76 : 195,586,363.07 = 76,539,153.76 : x - Step 2: Convert to fraction form
141,729,249.76/195,586,363.07 = 76,539,153.76/x - Step 3: Cross multiply
141,729,249.76x = 195,586,363.07 × 76,539,153.76 - Step 4: Simplify right side
141,729,249.76x = 14,970,014,716,373,916 - Step 5: Solve for x
x = 14,970,014,716,373,916/141,729,249.76 - Step 6: Final answer
x = 105,624,031.33
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1.5x scale
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.