Finding the Fourth Proportional to 13,854,986.08, 19,119,832.90 and 7,743,414.56
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Solution
The fourth proportional to 13,854,986.08, 19,119,832.90 and 7,743,414.56 is: 10,685,885.33
Step by Step Solution
- Step 1: Write the proportion equation
13,854,986.08 : 19,119,832.90 = 7,743,414.56 : x - Step 2: Convert to fraction form
13,854,986.08/19,119,832.90 = 7,743,414.56/x - Step 3: Cross multiply
13,854,986.08x = 19,119,832.90 × 7,743,414.56 - Step 4: Simplify right side
13,854,986.08x = 148,052,792,462,627 - Step 5: Solve for x
x = 148,052,792,462,627/13,854,986.08 - Step 6: Final answer
x = 10,685,885.33
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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.