Finding the Fourth Proportional to 6,430,739.94, 8,874,191.51 and 3,639,803.31
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Solution
The fourth proportional to 6,430,739.94, 8,874,191.51 and 3,639,803.31 is: 5,022,798.61
Step by Step Solution
- Step 1: Write the proportion equation
6,430,739.94 : 8,874,191.51 = 3,639,803.31 : x - Step 2: Convert to fraction form
6,430,739.94/8,874,191.51 = 3,639,803.31/x - Step 3: Cross multiply
6,430,739.94x = 8,874,191.51 × 3,639,803.31 - Step 4: Simplify right side
6,430,739.94x = 32,300,311,631,671.90 - Step 5: Solve for x
x = 32,300,311,631,671.90/6,430,739.94 - Step 6: Final answer
x = 5,022,798.61
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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.