Finding the Fourth Proportional to 6,908,298.40, 10,362,350.40 and 3,121,775.20
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Solution
The fourth proportional to 6,908,298.40, 10,362,350.40 and 3,121,775.20 is: 4,682,618.88
Step by Step Solution
- Step 1: Write the proportion equation
6,908,298.40 : 10,362,350.40 = 3,121,775.20 : x - Step 2: Convert to fraction form
6,908,298.40/10,362,350.40 = 3,121,775.20/x - Step 3: Cross multiply
6,908,298.40x = 10,362,350.40 × 3,121,775.20 - Step 4: Simplify right side
6,908,298.40x = 32,348,928,492,430.08 - Step 5: Solve for x
x = 32,348,928,492,430.08/6,908,298.40 - Step 6: Final answer
x = 4,682,618.88
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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.