Finding the Fourth Proportional to 88,958,075.40, 133,325,138.70 and 78,880,379.40
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Solution
The fourth proportional to 88,958,075.40, 133,325,138.70 and 78,880,379.40 is: 118,221,279.82
Step by Step Solution
- Step 1: Write the proportion equation
88,958,075.40 : 133,325,138.70 = 78,880,379.40 : x - Step 2: Convert to fraction form
88,958,075.40/133,325,138.70 = 78,880,379.40/x - Step 3: Cross multiply
88,958,075.40x = 133,325,138.70 × 78,880,379.40 - Step 4: Simplify right side
88,958,075.40x = 10,516,737,524,213,624 - Step 5: Solve for x
x = 10,516,737,524,213,624/88,958,075.40 - Step 6: Final answer
x = 118,221,279.82
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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.