Finding the Fourth Proportional to 7,110,755.60, 9,811,136.21 and 4,319,823.06
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Solution
The fourth proportional to 7,110,755.60, 9,811,136.21 and 4,319,823.06 is: 5,960,319.11
Step by Step Solution
- Step 1: Write the proportion equation
7,110,755.60 : 9,811,136.21 = 4,319,823.06 : x - Step 2: Convert to fraction form
7,110,755.60/9,811,136.21 = 4,319,823.06/x - Step 3: Cross multiply
7,110,755.60x = 9,811,136.21 × 4,319,823.06 - Step 4: Simplify right side
7,110,755.60x = 42,382,372,450,753.70 - Step 5: Solve for x
x = 42,382,372,450,753.70/7,110,755.60 - Step 6: Final answer
x = 5,960,319.11
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.