Finding the Fourth Proportional to 99,948,811.76, 149,987,954.73 and 53,922,450.55
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Solution
The fourth proportional to 99,948,811.76, 149,987,954.73 and 53,922,450.55 is: 80,918,601.52
Step by Step Solution
- Step 1: Write the proportion equation
99,948,811.76 : 149,987,954.73 = 53,922,450.55 : x - Step 2: Convert to fraction form
99,948,811.76/149,987,954.73 = 53,922,450.55/x - Step 3: Cross multiply
99,948,811.76x = 149,987,954.73 × 53,922,450.55 - Step 4: Simplify right side
99,948,811.76x = 8,087,718,071,829,486 - Step 5: Solve for x
x = 8,087,718,071,829,486/99,948,811.76 - Step 6: Final answer
x = 80,918,601.52
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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.