Finding the Fourth Proportional to 5,346,913.90, 8,019,386.70 and 3,321,533.20
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Solution
The fourth proportional to 5,346,913.90, 8,019,386.70 and 3,321,533.20 is: 4,981,688.44
Step by Step Solution
- Step 1: Write the proportion equation
5,346,913.90 : 8,019,386.70 = 3,321,533.20 : x - Step 2: Convert to fraction form
5,346,913.90/8,019,386.70 = 3,321,533.20/x - Step 3: Cross multiply
5,346,913.90x = 8,019,386.70 × 3,321,533.20 - Step 4: Simplify right side
5,346,913.90x = 26,636,659,167,688.44 - Step 5: Solve for x
x = 26,636,659,167,688.44/5,346,913.90 - Step 6: Final answer
x = 4,981,688.44
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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.