Finding the Fourth Proportional to 10,394,994.30, 15,575,902.65 and 8,702,936.70
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Solution
The fourth proportional to 10,394,994.30, 15,575,902.65 and 8,702,936.70 is: 13,040,516.51
Step by Step Solution
- Step 1: Write the proportion equation
10,394,994.30 : 15,575,902.65 = 8,702,936.70 : x - Step 2: Convert to fraction form
10,394,994.30/15,575,902.65 = 8,702,936.70/x - Step 3: Cross multiply
10,394,994.30x = 15,575,902.65 × 8,702,936.70 - Step 4: Simplify right side
10,394,994.30x = 135,556,094,808,312.25 - Step 5: Solve for x
x = 135,556,094,808,312.25/10,394,994.30 - Step 6: Final answer
x = 13,040,516.51
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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.