Finding the Fourth Proportional to 141,744,177.80, 212,616,266.70 and 77,078,961.80
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Solution
The fourth proportional to 141,744,177.80, 212,616,266.70 and 77,078,961.80 is: 115,618,442.70
Step by Step Solution
- Step 1: Write the proportion equation
141,744,177.80 : 212,616,266.70 = 77,078,961.80 : x - Step 2: Convert to fraction form
141,744,177.80/212,616,266.70 = 77,078,961.80/x - Step 3: Cross multiply
141,744,177.80x = 212,616,266.70 × 77,078,961.80 - Step 4: Simplify right side
141,744,177.80x = 16,388,241,099,027,910 - Step 5: Solve for x
x = 16,388,241,099,027,910/141,744,177.80 - Step 6: Final answer
x = 115,618,442.70
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1.5x scale
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.