Finding the Fourth Proportional to 221,298,821.70, 310,271,846.70 and 221,298,821.70
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Solution
The fourth proportional to 221,298,821.70, 310,271,846.70 and 221,298,821.70 is: 310,271,846.70
Step by Step Solution
- Step 1: Write the proportion equation
221,298,821.70 : 310,271,846.70 = 221,298,821.70 : x - Step 2: Convert to fraction form
221,298,821.70/310,271,846.70 = 221,298,821.70/x - Step 3: Cross multiply
221,298,821.70x = 310,271,846.70 × 221,298,821.70 - Step 4: Simplify right side
221,298,821.70x = 68,662,794,081,393,024 - Step 5: Solve for x
x = 68,662,794,081,393,024/221,298,821.70 - Step 6: Final answer
x = 310,271,846.70
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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.