Finding the Fourth Proportional to 13,854,985.56, 19,119,832.20 and 7,743,414.06
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Solution
The fourth proportional to 13,854,985.56, 19,119,832.20 and 7,743,414.06 is: 10,685,884.65
Step by Step Solution
- Step 1: Write the proportion equation
13,854,985.56 : 19,119,832.20 = 7,743,414.06 : x - Step 2: Convert to fraction form
13,854,985.56/19,119,832.20 = 7,743,414.06/x - Step 3: Cross multiply
13,854,985.56x = 19,119,832.20 × 7,743,414.06 - Step 4: Simplify right side
13,854,985.56x = 148,052,777,482,320.72 - Step 5: Solve for x
x = 148,052,777,482,320.72/13,854,985.56 - Step 6: Final answer
x = 10,685,884.65
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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.