Finding the Fourth Proportional to 8,237,660.40, 12,356,490.60 and 6,809,986.80
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Solution
The fourth proportional to 8,237,660.40, 12,356,490.60 and 6,809,986.80 is: 10,214,980.20
Step by Step Solution
- Step 1: Write the proportion equation
8,237,660.40 : 12,356,490.60 = 6,809,986.80 : x - Step 2: Convert to fraction form
8,237,660.40/12,356,490.60 = 6,809,986.80/x - Step 3: Cross multiply
8,237,660.40x = 12,356,490.60 × 6,809,986.80 - Step 4: Simplify right side
8,237,660.40x = 84,147,537,880,324.08 - Step 5: Solve for x
x = 84,147,537,880,324.08/8,237,660.40 - Step 6: Final answer
x = 10,214,980.20
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1.5x scale
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.