Finding the Fourth Proportional to 664,012,106.40, 996,167,458.80 and 203,971,504.80
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Solution
The fourth proportional to 664,012,106.40, 996,167,458.80 and 203,971,504.80 is: 306,003,118.99
Step by Step Solution
- Step 1: Write the proportion equation
664,012,106.40 : 996,167,458.80 = 203,971,504.80 : x - Step 2: Convert to fraction form
664,012,106.40/996,167,458.80 = 203,971,504.80/x - Step 3: Cross multiply
664,012,106.40x = 996,167,458.80 × 203,971,504.80 - Step 4: Simplify right side
664,012,106.40x = 203,189,775,604,228,000 - Step 5: Solve for x
x = 203,189,775,604,228,000/664,012,106.40 - Step 6: Final answer
x = 306,003,118.99
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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.