Finding the Fourth Proportional to 12,951,354.99, 17,872,777.35 and 7,070,988.99
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Solution
The fourth proportional to 12,951,354.99, 17,872,777.35 and 7,070,988.99 is: 9,757,914.28
Step by Step Solution
- Step 1: Write the proportion equation
12,951,354.99 : 17,872,777.35 = 7,070,988.99 : x - Step 2: Convert to fraction form
12,951,354.99/17,872,777.35 = 7,070,988.99/x - Step 3: Cross multiply
12,951,354.99x = 17,872,777.35 × 7,070,988.99 - Step 4: Simplify right side
12,951,354.99x = 126,378,211,862,571.39 - Step 5: Solve for x
x = 126,378,211,862,571.39/12,951,354.99 - Step 6: Final answer
x = 9,757,914.28
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1.5x scale
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.