Finding the Fourth Proportional to 21,768,164.79, 32,656,971.10 and 6,621,702.63
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Solution
The fourth proportional to 21,768,164.79, 32,656,971.10 and 6,621,702.63 is: 9,933,990.92
Step by Step Solution
- Step 1: Write the proportion equation
21,768,164.79 : 32,656,971.10 = 6,621,702.63 : x - Step 2: Convert to fraction form
21,768,164.79/32,656,971.10 = 6,621,702.63/x - Step 3: Cross multiply
21,768,164.79x = 32,656,971.10 × 6,621,702.63 - Step 4: Simplify right side
21,768,164.79x = 216,244,751,420,704 - Step 5: Solve for x
x = 216,244,751,420,704/21,768,164.79 - Step 6: Final answer
x = 9,933,990.92
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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.