Finding the Fourth Proportional to 8,130,635.48, 12,211,117.33 and 7,158,344.49
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Solution
The fourth proportional to 8,130,635.48, 12,211,117.33 and 7,158,344.49 is: 10,750,867.46
Step by Step Solution
- Step 1: Write the proportion equation
8,130,635.48 : 12,211,117.33 = 7,158,344.49 : x - Step 2: Convert to fraction form
8,130,635.48/12,211,117.33 = 7,158,344.49/x - Step 3: Cross multiply
8,130,635.48x = 12,211,117.33 × 7,158,344.49 - Step 4: Simplify right side
8,130,635.48x = 87,411,384,359,101.70 - Step 5: Solve for x
x = 87,411,384,359,101.70/8,130,635.48 - Step 6: Final answer
x = 10,750,867.46
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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.