Finding the Fourth Proportional to 7,800,530.40, 11,700,795.60 and 6,805,202.40
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Solution
The fourth proportional to 7,800,530.40, 11,700,795.60 and 6,805,202.40 is: 10,207,803.60
Step by Step Solution
- Step 1: Write the proportion equation
7,800,530.40 : 11,700,795.60 = 6,805,202.40 : x - Step 2: Convert to fraction form
7,800,530.40/11,700,795.60 = 6,805,202.40/x - Step 3: Cross multiply
7,800,530.40x = 11,700,795.60 × 6,805,202.40 - Step 4: Simplify right side
7,800,530.40x = 79,626,282,299,029.44 - Step 5: Solve for x
x = 79,626,282,299,029.44/7,800,530.40 - Step 6: Final answer
x = 10,207,803.60
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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.