Finding the Fourth Proportional to 12,542,905.80, 18,814,358.70 and 9,708,553.80
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Solution
The fourth proportional to 12,542,905.80, 18,814,358.70 and 9,708,553.80 is: 14,562,830.70
Step by Step Solution
- Step 1: Write the proportion equation
12,542,905.80 : 18,814,358.70 = 9,708,553.80 : x - Step 2: Convert to fraction form
12,542,905.80/18,814,358.70 = 9,708,553.80/x - Step 3: Cross multiply
12,542,905.80x = 18,814,358.70 × 9,708,553.80 - Step 4: Simplify right side
12,542,905.80x = 182,660,213,651,448.06 - Step 5: Solve for x
x = 182,660,213,651,448.06/12,542,905.80 - Step 6: Final answer
x = 14,562,830.70
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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.