Finding the Fourth Proportional to 242,665,921.80, 363,998,882.70 and 97,121,946.60
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Solution
The fourth proportional to 242,665,921.80, 363,998,882.70 and 97,121,946.60 is: 145,682,919.90
Step by Step Solution
- Step 1: Write the proportion equation
242,665,921.80 : 363,998,882.70 = 97,121,946.60 : x - Step 2: Convert to fraction form
242,665,921.80/363,998,882.70 = 97,121,946.60/x - Step 3: Cross multiply
242,665,921.80x = 363,998,882.70 × 97,121,946.60 - Step 4: Simplify right side
242,665,921.80x = 35,352,280,048,049,060 - Step 5: Solve for x
x = 35,352,280,048,049,060/242,665,921.80 - Step 6: Final answer
x = 145,682,919.90
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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.