Finding the Fourth Proportional to 7,183,406.70, 9,913,311.24 and 3,920,430.96
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Solution
The fourth proportional to 7,183,406.70, 9,913,311.24 and 3,920,430.96 is: 5,410,309.33
Step by Step Solution
- Step 1: Write the proportion equation
7,183,406.70 : 9,913,311.24 = 3,920,430.96 : x - Step 2: Convert to fraction form
7,183,406.70/9,913,311.24 = 3,920,430.96/x - Step 3: Cross multiply
7,183,406.70x = 9,913,311.24 × 3,920,430.96 - Step 4: Simplify right side
7,183,406.70x = 38,864,452,301,411.99 - Step 5: Solve for x
x = 38,864,452,301,411.99/7,183,406.70 - Step 6: Final answer
x = 5,410,309.33
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.