Finding the Fourth Proportional to 235,485,942.70, 353,238,654.40 and 69,489,449.68
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Solution
The fourth proportional to 235,485,942.70, 353,238,654.40 and 69,489,449.68 is: 104,237,048.80
Step by Step Solution
- Step 1: Write the proportion equation
235,485,942.70 : 353,238,654.40 = 69,489,449.68 : x - Step 2: Convert to fraction form
235,485,942.70/353,238,654.40 = 69,489,449.68/x - Step 3: Cross multiply
235,485,942.70x = 353,238,654.40 × 69,489,449.68 - Step 4: Simplify right side
235,485,942.70x = 24,546,359,699,959,712 - Step 5: Solve for x
x = 24,546,359,699,959,712/235,485,942.70 - Step 6: Final answer
x = 104,237,048.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.