Finding the Fourth Proportional to 97,997,155.20, 146,995,732.80 and 68,771,836.80
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Solution
The fourth proportional to 97,997,155.20, 146,995,732.80 and 68,771,836.80 is: 103,157,755.20
Step by Step Solution
- Step 1: Write the proportion equation
97,997,155.20 : 146,995,732.80 = 68,771,836.80 : x - Step 2: Convert to fraction form
97,997,155.20/146,995,732.80 = 68,771,836.80/x - Step 3: Cross multiply
97,997,155.20x = 146,995,732.80 × 68,771,836.80 - Step 4: Simplify right side
97,997,155.20x = 10,109,166,546,418,008 - Step 5: Solve for x
x = 10,109,166,546,418,008/97,997,155.20 - Step 6: Final answer
x = 103,157,755.20
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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.