Finding the Fourth Proportional to 129,750,806.80, 194,626,210.20 and 38,874,395.80
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Solution
The fourth proportional to 129,750,806.80, 194,626,210.20 and 38,874,395.80 is: 58,311,593.70
Step by Step Solution
- Step 1: Write the proportion equation
129,750,806.80 : 194,626,210.20 = 38,874,395.80 : x - Step 2: Convert to fraction form
129,750,806.80/194,626,210.20 = 38,874,395.80/x - Step 3: Cross multiply
129,750,806.80x = 194,626,210.20 × 38,874,395.80 - Step 4: Simplify right side
129,750,806.80x = 7,565,976,328,368,796 - Step 5: Solve for x
x = 7,565,976,328,368,796/129,750,806.80 - Step 6: Final answer
x = 58,311,593.70
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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.