Finding the Fourth Proportional to 11,398,257.80, 15,729,602.40 and 6,241,619.34
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Solution
The fourth proportional to 11,398,257.80, 15,729,602.40 and 6,241,619.34 is: 8,613,438.32
Step by Step Solution
- Step 1: Write the proportion equation
11,398,257.80 : 15,729,602.40 = 6,241,619.34 : x - Step 2: Convert to fraction form
11,398,257.80/15,729,602.40 = 6,241,619.34/x - Step 3: Cross multiply
11,398,257.80x = 15,729,602.40 × 6,241,619.34 - Step 4: Simplify right side
11,398,257.80x = 98,178,190,550,350.42 - Step 5: Solve for x
x = 98,178,190,550,350.42/11,398,257.80 - Step 6: Final answer
x = 8,613,438.32
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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.