Finding the Fourth Proportional to 221,299,811.70, 310,273,232.70 and 221,299,811.70
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Solution
The fourth proportional to 221,299,811.70, 310,273,232.70 and 221,299,811.70 is: 310,273,232.70
Step by Step Solution
- Step 1: Write the proportion equation
221,299,811.70 : 310,273,232.70 = 221,299,811.70 : x - Step 2: Convert to fraction form
221,299,811.70/310,273,232.70 = 221,299,811.70/x - Step 3: Cross multiply
221,299,811.70x = 310,273,232.70 × 221,299,811.70 - Step 4: Simplify right side
221,299,811.70x = 68,663,407,972,060,280 - Step 5: Solve for x
x = 68,663,407,972,060,280/221,299,811.70 - Step 6: Final answer
x = 310,273,232.70
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.