Finding the Fourth Proportional to 98,290,467.60, 147,719,136.60 and 85,819,318.80
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Solution
The fourth proportional to 98,290,467.60, 147,719,136.60 and 85,819,318.80 is: 128,976,450.99
Step by Step Solution
- Step 1: Write the proportion equation
98,290,467.60 : 147,719,136.60 = 85,819,318.80 : x - Step 2: Convert to fraction form
98,290,467.60/147,719,136.60 = 85,819,318.80/x - Step 3: Cross multiply
98,290,467.60x = 147,719,136.60 × 85,819,318.80 - Step 4: Simplify right side
98,290,467.60x = 12,677,155,676,736,148 - Step 5: Solve for x
x = 12,677,155,676,736,148/98,290,467.60 - Step 6: Final answer
x = 128,976,450.99
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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.