Finding the Fourth Proportional to 12,738,069.80, 19,107,104.70 and 8,486,541.80
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Solution
The fourth proportional to 12,738,069.80, 19,107,104.70 and 8,486,541.80 is: 12,729,812.70
Step by Step Solution
- Step 1: Write the proportion equation
12,738,069.80 : 19,107,104.70 = 8,486,541.80 : x - Step 2: Convert to fraction form
12,738,069.80/19,107,104.70 = 8,486,541.80/x - Step 3: Cross multiply
12,738,069.80x = 19,107,104.70 × 8,486,541.80 - Step 4: Simplify right side
12,738,069.80x = 162,153,242,713,526.47 - Step 5: Solve for x
x = 162,153,242,713,526.47/12,738,069.80 - Step 6: Final answer
x = 12,729,812.70
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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.