Finding the Fourth Proportional to 7,420,604.10, 11,130,906.15 and 6,145,145.70
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Solution
The fourth proportional to 7,420,604.10, 11,130,906.15 and 6,145,145.70 is: 9,217,718.55
Step by Step Solution
- Step 1: Write the proportion equation
7,420,604.10 : 11,130,906.15 = 6,145,145.70 : x - Step 2: Convert to fraction form
7,420,604.10/11,130,906.15 = 6,145,145.70/x - Step 3: Cross multiply
7,420,604.10x = 11,130,906.15 × 6,145,145.70 - Step 4: Simplify right side
7,420,604.10x = 68,401,040,064,776.06 - Step 5: Solve for x
x = 68,401,040,064,776.06/7,420,604.10 - Step 6: Final answer
x = 9,217,718.55
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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.