Finding the Fourth Proportional to 19,207,911.97, 28,811,917.17 and 7,848,360.58
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Solution
The fourth proportional to 19,207,911.97, 28,811,917.17 and 7,848,360.58 is: 11,772,560.98
Step by Step Solution
- Step 1: Write the proportion equation
19,207,911.97 : 28,811,917.17 = 7,848,360.58 : x - Step 2: Convert to fraction form
19,207,911.97/28,811,917.17 = 7,848,360.58/x - Step 3: Cross multiply
19,207,911.97x = 28,811,917.17 × 7,848,360.58 - Step 4: Simplify right side
19,207,911.97x = 226,126,314,951,253.19 - Step 5: Solve for x
x = 226,126,314,951,253.19/19,207,911.97 - Step 6: Final answer
x = 11,772,560.98
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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.