Finding the Fourth Proportional to 5,617,435.76, 8,430,879.40 and 5,263,141.36
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Solution
The fourth proportional to 5,617,435.76, 8,430,879.40 and 5,263,141.36 is: 7,899,139.74
Step by Step Solution
- Step 1: Write the proportion equation
5,617,435.76 : 8,430,879.40 = 5,263,141.36 : x - Step 2: Convert to fraction form
5,617,435.76/8,430,879.40 = 5,263,141.36/x - Step 3: Cross multiply
5,617,435.76x = 8,430,879.40 × 5,263,141.36 - Step 4: Simplify right side
5,617,435.76x = 44,372,910,071,311.99 - Step 5: Solve for x
x = 44,372,910,071,311.99/5,617,435.76 - Step 6: Final answer
x = 7,899,139.74
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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.