Finding the Fourth Proportional to 7,179,401.70, 10,769,102.55 and 6,383,139.30
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Solution
The fourth proportional to 7,179,401.70, 10,769,102.55 and 6,383,139.30 is: 9,574,708.95
Step by Step Solution
- Step 1: Write the proportion equation
7,179,401.70 : 10,769,102.55 = 6,383,139.30 : x - Step 2: Convert to fraction form
7,179,401.70/10,769,102.55 = 6,383,139.30/x - Step 3: Cross multiply
7,179,401.70x = 10,769,102.55 × 6,383,139.30 - Step 4: Simplify right side
7,179,401.70x = 68,740,681,712,635.22 - Step 5: Solve for x
x = 68,740,681,712,635.22/7,179,401.70 - Step 6: Final answer
x = 9,574,708.95
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Double scale
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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.