Finding the Fourth Proportional to 220,912,731.36, 304,859,905.20 and 123,125,487.84
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Solution
The fourth proportional to 220,912,731.36, 304,859,905.20 and 123,125,487.84 is: 169,913,360.45
Step by Step Solution
- Step 1: Write the proportion equation
220,912,731.36 : 304,859,905.20 = 123,125,487.84 : x - Step 2: Convert to fraction form
220,912,731.36/304,859,905.20 = 123,125,487.84/x - Step 3: Cross multiply
220,912,731.36x = 304,859,905.20 × 123,125,487.84 - Step 4: Simplify right side
220,912,731.36x = 37,536,024,550,606,152 - Step 5: Solve for x
x = 37,536,024,550,606,152/220,912,731.36 - Step 6: Final answer
x = 169,913,360.45
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.