Finding the Fourth Proportional to 8,139,800.70, 12,199,203.45 and 6,237,110.70
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Solution
The fourth proportional to 8,139,800.70, 12,199,203.45 and 6,237,110.70 is: 9,347,622.28
Step by Step Solution
- Step 1: Write the proportion equation
8,139,800.70 : 12,199,203.45 = 6,237,110.70 : x - Step 2: Convert to fraction form
8,139,800.70/12,199,203.45 = 6,237,110.70/x - Step 3: Cross multiply
8,139,800.70x = 12,199,203.45 × 6,237,110.70 - Step 4: Simplify right side
8,139,800.70x = 76,087,782,369,471.91 - Step 5: Solve for x
x = 76,087,782,369,471.91/8,139,800.70 - Step 6: Final answer
x = 9,347,622.28
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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.