Finding the Fourth Proportional to 13,296,354.52, 18,348,968.86 and 7,184,782.84
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Solution
The fourth proportional to 13,296,354.52, 18,348,968.86 and 7,184,782.84 is: 9,915,000.12
Step by Step Solution
- Step 1: Write the proportion equation
13,296,354.52 : 18,348,968.86 = 7,184,782.84 : x - Step 2: Convert to fraction form
13,296,354.52/18,348,968.86 = 7,184,782.84/x - Step 3: Cross multiply
13,296,354.52x = 18,348,968.86 × 7,184,782.84 - Step 4: Simplify right side
13,296,354.52x = 131,833,356,597,022.36 - Step 5: Solve for x
x = 131,833,356,597,022.36/13,296,354.52 - Step 6: Final answer
x = 9,915,000.12
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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.