Finding the Fourth Proportional to 6,646,157.20, 9,968,349.98 and 1,853,445.12
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Solution
The fourth proportional to 6,646,157.20, 9,968,349.98 and 1,853,445.12 is: 2,779,920.65
Step by Step Solution
- Step 1: Write the proportion equation
6,646,157.20 : 9,968,349.98 = 1,853,445.12 : x - Step 2: Convert to fraction form
6,646,157.20/9,968,349.98 = 1,853,445.12/x - Step 3: Cross multiply
6,646,157.20x = 9,968,349.98 × 1,853,445.12 - Step 4: Simplify right side
6,646,157.20x = 18,475,789,624,883.10 - Step 5: Solve for x
x = 18,475,789,624,883.10/6,646,157.20 - Step 6: Final answer
x = 2,779,920.65
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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.