Finding the Fourth Proportional to 129,408,207,246.80, 194,112,310,870.40 and 129,408,207,246.80
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Solution
The fourth proportional to 129,408,207,246.80, 194,112,310,870.40 and 129,408,207,246.80 is: 194,112,310,870.40
Step by Step Solution
- Step 1: Write the proportion equation
129,408,207,246.80 : 194,112,310,870.40 = 129,408,207,246.80 : x - Step 2: Convert to fraction form
129,408,207,246.80/194,112,310,870.40 = 129,408,207,246.80/x - Step 3: Cross multiply
129,408,207,246.80x = 194,112,310,870.40 × 129,408,207,246.80 - Step 4: Simplify right side
129,408,207,246.80x = 25,119,726,154,271,990,743,040 - Step 5: Solve for x
x = 25,119,726,154,271,990,743,040/129,408,207,246.80 - Step 6: Final answer
x = 194,112,310,870.40
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Double scale
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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.