Finding the Fourth Proportional to 3,621,349,324.80, 5,432,023,987.20 and 1,964,050,566.30
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Solution
The fourth proportional to 3,621,349,324.80, 5,432,023,987.20 and 1,964,050,566.30 is: 2,946,075,849.45
Step by Step Solution
- Step 1: Write the proportion equation
3,621,349,324.80 : 5,432,023,987.20 = 1,964,050,566.30 : x - Step 2: Convert to fraction form
3,621,349,324.80/5,432,023,987.20 = 1,964,050,566.30/x - Step 3: Cross multiply
3,621,349,324.80x = 5,432,023,987.20 × 1,964,050,566.30 - Step 4: Simplify right side
3,621,349,324.80x = 10,668,769,788,215,343,104 - Step 5: Solve for x
x = 10,668,769,788,215,343,104/3,621,349,324.80 - Step 6: Final answer
x = 2,946,075,849.45
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Double scale
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Similar ratio
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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.