Finding the Fourth Proportional to 13,458,675.20, 20,190,637.20 and 5,782,305.20
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Solution
The fourth proportional to 13,458,675.20, 20,190,637.20 and 5,782,305.20 is: 8,674,585.33
Step by Step Solution
- Step 1: Write the proportion equation
13,458,675.20 : 20,190,637.20 = 5,782,305.20 : x - Step 2: Convert to fraction form
13,458,675.20/20,190,637.20 = 5,782,305.20/x - Step 3: Cross multiply
13,458,675.20x = 20,190,637.20 × 5,782,305.20 - Step 4: Simplify right side
13,458,675.20x = 116,748,426,472,873.44 - Step 5: Solve for x
x = 116,748,426,472,873.44/13,458,675.20 - Step 6: Final answer
x = 8,674,585.33
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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.