Finding the Fourth Proportional to 79,509,905.80, 119,264,858.70 and 79,509,905.80
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Solution
The fourth proportional to 79,509,905.80, 119,264,858.70 and 79,509,905.80 is: 119,264,858.70
Step by Step Solution
- Step 1: Write the proportion equation
79,509,905.80 : 119,264,858.70 = 79,509,905.80 : x - Step 2: Convert to fraction form
79,509,905.80/119,264,858.70 = 79,509,905.80/x - Step 3: Cross multiply
79,509,905.80x = 119,264,858.70 × 79,509,905.80 - Step 4: Simplify right side
79,509,905.80x = 9,482,737,680,487,310 - Step 5: Solve for x
x = 9,482,737,680,487,310/79,509,905.80 - Step 6: Final answer
x = 119,264,858.70
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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.