Finding the Fourth Proportional to 129,750,805.80, 194,626,208.70 and 38,874,394.80
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Solution
The fourth proportional to 129,750,805.80, 194,626,208.70 and 38,874,394.80 is: 58,311,592.20
Step by Step Solution
- Step 1: Write the proportion equation
129,750,805.80 : 194,626,208.70 = 38,874,394.80 : x - Step 2: Convert to fraction form
129,750,805.80/194,626,208.70 = 38,874,394.80/x - Step 3: Cross multiply
129,750,805.80x = 194,626,208.70 × 38,874,394.80 - Step 4: Simplify right side
129,750,805.80x = 7,565,976,075,430,994 - Step 5: Solve for x
x = 7,565,976,075,430,994/129,750,805.80 - Step 6: Final answer
x = 58,311,592.20
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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.