Finding the Fourth Proportional to 10,078,581.44, 15,108,919.95 and 3,929,145.68
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Solution
The fourth proportional to 10,078,581.44, 15,108,919.95 and 3,929,145.68 is: 5,890,228.49
Step by Step Solution
- Step 1: Write the proportion equation
10,078,581.44 : 15,108,919.95 = 3,929,145.68 : x - Step 2: Convert to fraction form
10,078,581.44/15,108,919.95 = 3,929,145.68/x - Step 3: Cross multiply
10,078,581.44x = 15,108,919.95 × 3,929,145.68 - Step 4: Simplify right side
10,078,581.44x = 59,365,147,551,008.31 - Step 5: Solve for x
x = 59,365,147,551,008.31/10,078,581.44 - Step 6: Final answer
x = 5,890,228.49
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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.