Finding the Fourth Proportional to 21,379,967.70, 32,069,951.55 and 6,235,430.10
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Solution
The fourth proportional to 21,379,967.70, 32,069,951.55 and 6,235,430.10 is: 9,353,145.15
Step by Step Solution
- Step 1: Write the proportion equation
21,379,967.70 : 32,069,951.55 = 6,235,430.10 : x - Step 2: Convert to fraction form
21,379,967.70/32,069,951.55 = 6,235,430.10/x - Step 3: Cross multiply
21,379,967.70x = 32,069,951.55 × 6,235,430.10 - Step 4: Simplify right side
21,379,967.70x = 199,969,941,200,411.66 - Step 5: Solve for x
x = 199,969,941,200,411.66/21,379,967.70 - Step 6: Final answer
x = 9,353,145.15
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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.