Finding the Fourth Proportional to 8,885,990.70, 13,328,986.05 and 8,354,549.70
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Solution
The fourth proportional to 8,885,990.70, 13,328,986.05 and 8,354,549.70 is: 12,531,824.55
Step by Step Solution
- Step 1: Write the proportion equation
8,885,990.70 : 13,328,986.05 = 8,354,549.70 : x - Step 2: Convert to fraction form
8,885,990.70/13,328,986.05 = 8,354,549.70/x - Step 3: Cross multiply
8,885,990.70x = 13,328,986.05 × 8,354,549.70 - Step 4: Simplify right side
8,885,990.70x = 111,357,676,405,331.69 - Step 5: Solve for x
x = 111,357,676,405,331.69/8,885,990.70 - Step 6: Final answer
x = 12,531,824.55
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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.