Finding the Fourth Proportional to 11,122,401.70, 16,683,602.55 and 5,138,769.70
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Solution
The fourth proportional to 11,122,401.70, 16,683,602.55 and 5,138,769.70 is: 7,708,154.55
Step by Step Solution
- Step 1: Write the proportion equation
11,122,401.70 : 16,683,602.55 = 5,138,769.70 : x - Step 2: Convert to fraction form
11,122,401.70/16,683,602.55 = 5,138,769.70/x - Step 3: Cross multiply
11,122,401.70x = 16,683,602.55 × 5,138,769.70 - Step 4: Simplify right side
11,122,401.70x = 85,733,191,270,782.73 - Step 5: Solve for x
x = 85,733,191,270,782.73/11,122,401.70 - Step 6: Final answer
x = 7,708,154.55
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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.