Finding the Fourth Proportional to 6,642,882.90, 9,964,324.35 and 1,851,311.70
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Solution
The fourth proportional to 6,642,882.90, 9,964,324.35 and 1,851,311.70 is: 2,776,967.55
Step by Step Solution
- Step 1: Write the proportion equation
6,642,882.90 : 9,964,324.35 = 1,851,311.70 : x - Step 2: Convert to fraction form
6,642,882.90/9,964,324.35 = 1,851,311.70/x - Step 3: Cross multiply
6,642,882.90x = 9,964,324.35 × 1,851,311.70 - Step 4: Simplify right side
6,642,882.90x = 18,447,070,251,749.89 - Step 5: Solve for x
x = 18,447,070,251,749.89/6,642,882.90 - Step 6: Final answer
x = 2,776,967.55
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Double scale
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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.