Finding the Fourth Proportional to 248,435,143.80, 372,652,715.70 and 248,435,143.80
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Solution
The fourth proportional to 248,435,143.80, 372,652,715.70 and 248,435,143.80 is: 372,652,715.70
Step by Step Solution
- Step 1: Write the proportion equation
248,435,143.80 : 372,652,715.70 = 248,435,143.80 : x - Step 2: Convert to fraction form
248,435,143.80/372,652,715.70 = 248,435,143.80/x - Step 3: Cross multiply
248,435,143.80x = 372,652,715.70 × 248,435,143.80 - Step 4: Simplify right side
248,435,143.80x = 92,580,031,012,390,016 - Step 5: Solve for x
x = 92,580,031,012,390,016/248,435,143.80 - Step 6: Final answer
x = 372,652,715.70
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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.