Finding the Fourth Proportional to 13,442,832.14, 18,547,919.73 and 7,641,157.19
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Solution
The fourth proportional to 13,442,832.14, 18,547,919.73 and 7,641,157.19 is: 10,542,984.45
Step by Step Solution
- Step 1: Write the proportion equation
13,442,832.14 : 18,547,919.73 = 7,641,157.19 : x - Step 2: Convert to fraction form
13,442,832.14/18,547,919.73 = 7,641,157.19/x - Step 3: Cross multiply
13,442,832.14x = 18,547,919.73 × 7,641,157.19 - Step 4: Simplify right side
13,442,832.14x = 141,727,570,111,692.75 - Step 5: Solve for x
x = 141,727,570,111,692.75/13,442,832.14 - Step 6: Final answer
x = 10,542,984.45
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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.