Finding the Fourth Proportional to 10,780,511.80, 16,170,767.70 and 6,528,983.80
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Solution
The fourth proportional to 10,780,511.80, 16,170,767.70 and 6,528,983.80 is: 9,793,475.70
Step by Step Solution
- Step 1: Write the proportion equation
10,780,511.80 : 16,170,767.70 = 6,528,983.80 : x - Step 2: Convert to fraction form
10,780,511.80/16,170,767.70 = 6,528,983.80/x - Step 3: Cross multiply
10,780,511.80x = 16,170,767.70 × 6,528,983.80 - Step 4: Simplify right side
10,780,511.80x = 105,578,680,346,863.25 - Step 5: Solve for x
x = 105,578,680,346,863.25/10,780,511.80 - Step 6: Final answer
x = 9,793,475.70
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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.