Finding the Fourth Proportional to 13,190,742.09, 19,785,956.18 and 7,433,910.09
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Solution
The fourth proportional to 13,190,742.09, 19,785,956.18 and 7,433,910.09 is: 11,150,776.68
Step by Step Solution
- Step 1: Write the proportion equation
13,190,742.09 : 19,785,956.18 = 7,433,910.09 : x - Step 2: Convert to fraction form
13,190,742.09/19,785,956.18 = 7,433,910.09/x - Step 3: Cross multiply
13,190,742.09x = 19,785,956.18 × 7,433,910.09 - Step 4: Simplify right side
13,190,742.09x = 147,087,019,249,630.31 - Step 5: Solve for x
x = 147,087,019,249,630.31/13,190,742.09 - Step 6: Final answer
x = 11,150,776.68
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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.