Finding the Fourth Proportional to 21,416,795.55, 32,168,704.59 and 18,914,704.74
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Solution
The fourth proportional to 21,416,795.55, 32,168,704.59 and 18,914,704.74 is: 28,410,485.02
Step by Step Solution
- Step 1: Write the proportion equation
21,416,795.55 : 32,168,704.59 = 18,914,704.74 : x - Step 2: Convert to fraction form
21,416,795.55/32,168,704.59 = 18,914,704.74/x - Step 3: Cross multiply
21,416,795.55x = 32,168,704.59 × 18,914,704.74 - Step 4: Simplify right side
21,416,795.55x = 608,461,549,188,132.75 - Step 5: Solve for x
x = 608,461,549,188,132.75/21,416,795.55 - Step 6: Final answer
x = 28,410,485.02
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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.