Finding the Fourth Proportional to 212,846,135.70, 319,269,203.55 and 212,846,135.70
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Solution
The fourth proportional to 212,846,135.70, 319,269,203.55 and 212,846,135.70 is: 319,269,203.55
Step by Step Solution
- Step 1: Write the proportion equation
212,846,135.70 : 319,269,203.55 = 212,846,135.70 : x - Step 2: Convert to fraction form
212,846,135.70/319,269,203.55 = 212,846,135.70/x - Step 3: Cross multiply
212,846,135.70x = 319,269,203.55 × 212,846,135.70 - Step 4: Simplify right side
212,846,135.70x = 67,955,216,223,634,224 - Step 5: Solve for x
x = 67,955,216,223,634,224/212,846,135.70 - Step 6: Final answer
x = 319,269,203.55
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1.5x scale
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.