Finding the Fourth Proportional to 6,642,794.90, 9,964,192.35 and 6,586,807.70
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Solution
The fourth proportional to 6,642,794.90, 9,964,192.35 and 6,586,807.70 is: 9,880,211.55
Step by Step Solution
- Step 1: Write the proportion equation
6,642,794.90 : 9,964,192.35 = 6,586,807.70 : x - Step 2: Convert to fraction form
6,642,794.90/9,964,192.35 = 6,586,807.70/x - Step 3: Cross multiply
6,642,794.90x = 9,964,192.35 × 6,586,807.70 - Step 4: Simplify right side
6,642,794.90x = 65,632,218,895,261.09 - Step 5: Solve for x
x = 65,632,218,895,261.09/6,642,794.90 - Step 6: Final answer
x = 9,880,211.55
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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.