Finding the Fourth Proportional to 75,801,141.20, 113,701,711.80 and 27,280,577.90
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Solution
The fourth proportional to 75,801,141.20, 113,701,711.80 and 27,280,577.90 is: 40,920,866.85
Step by Step Solution
- Step 1: Write the proportion equation
75,801,141.20 : 113,701,711.80 = 27,280,577.90 : x - Step 2: Convert to fraction form
75,801,141.20/113,701,711.80 = 27,280,577.90/x - Step 3: Cross multiply
75,801,141.20x = 113,701,711.80 × 27,280,577.90 - Step 4: Simplify right side
75,801,141.20x = 3,101,848,406,123,249 - Step 5: Solve for x
x = 3,101,848,406,123,249/75,801,141.20 - Step 6: Final answer
x = 40,920,866.85
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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.