Finding the Fourth Proportional to 7,408,205.10, 11,112,307.65 and 6,605,138.70
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Solution
The fourth proportional to 7,408,205.10, 11,112,307.65 and 6,605,138.70 is: 9,907,708.05
Step by Step Solution
- Step 1: Write the proportion equation
7,408,205.10 : 11,112,307.65 = 6,605,138.70 : x - Step 2: Convert to fraction form
7,408,205.10/11,112,307.65 = 6,605,138.70/x - Step 3: Cross multiply
7,408,205.10x = 11,112,307.65 × 6,605,138.70 - Step 4: Simplify right side
7,408,205.10x = 73,398,333,305,321.06 - Step 5: Solve for x
x = 73,398,333,305,321.06/7,408,205.10 - Step 6: Final answer
x = 9,907,708.05
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Similar ratio
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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.