Finding the Fourth Proportional to 129,029,589.80, 193,544,384.70 and 119,175,842.60
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Solution
The fourth proportional to 129,029,589.80, 193,544,384.70 and 119,175,842.60 is: 178,763,763.90
Step by Step Solution
- Step 1: Write the proportion equation
129,029,589.80 : 193,544,384.70 = 119,175,842.60 : x - Step 2: Convert to fraction form
129,029,589.80/193,544,384.70 = 119,175,842.60/x - Step 3: Cross multiply
129,029,589.80x = 193,544,384.70 × 119,175,842.60 - Step 4: Simplify right side
129,029,589.80x = 23,065,815,127,121,044 - Step 5: Solve for x
x = 23,065,815,127,121,044/129,029,589.80 - Step 6: Final answer
x = 178,763,763.90
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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.