Finding the Fourth Proportional to 12,460,088.80, 18,679,635.60 and 6,476,456.80
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Solution
The fourth proportional to 12,460,088.80, 18,679,635.60 and 6,476,456.80 is: 9,709,228.80
Step by Step Solution
- Step 1: Write the proportion equation
12,460,088.80 : 18,679,635.60 = 6,476,456.80 : x - Step 2: Convert to fraction form
12,460,088.80/18,679,635.60 = 6,476,456.80/x - Step 3: Cross multiply
12,460,088.80x = 18,679,635.60 × 6,476,456.80 - Step 4: Simplify right side
12,460,088.80x = 120,977,853,003,142.09 - Step 5: Solve for x
x = 120,977,853,003,142.09/12,460,088.80 - Step 6: Final answer
x = 9,709,228.80
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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.