Finding the Fourth Proportional to 221,285,267.80, 331,927,901.70 and 106,494,011.80
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Solution
The fourth proportional to 221,285,267.80, 331,927,901.70 and 106,494,011.80 is: 159,741,017.70
Step by Step Solution
- Step 1: Write the proportion equation
221,285,267.80 : 331,927,901.70 = 106,494,011.80 : x - Step 2: Convert to fraction form
221,285,267.80/331,927,901.70 = 106,494,011.80/x - Step 3: Cross multiply
221,285,267.80x = 331,927,901.70 × 106,494,011.80 - Step 4: Simplify right side
221,285,267.80x = 35,348,333,880,389,036 - Step 5: Solve for x
x = 35,348,333,880,389,036/221,285,267.80 - Step 6: Final answer
x = 159,741,017.70
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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.