Finding the Fourth Proportional to 13,516,607.63, 18,652,764.08 and 7,321,537.55
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Solution
The fourth proportional to 13,516,607.63, 18,652,764.08 and 7,321,537.55 is: 10,103,638.16
Step by Step Solution
- Step 1: Write the proportion equation
13,516,607.63 : 18,652,764.08 = 7,321,537.55 : x - Step 2: Convert to fraction form
13,516,607.63/18,652,764.08 = 7,321,537.55/x - Step 3: Cross multiply
13,516,607.63x = 18,652,764.08 × 7,321,537.55 - Step 4: Simplify right side
13,516,607.63x = 136,566,912,529,747.38 - Step 5: Solve for x
x = 136,566,912,529,747.38/13,516,607.63 - Step 6: Final answer
x = 10,103,638.16
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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.