Finding the Fourth Proportional to 69,979,921.70, 104,957,918.78 and 18,849,983.09
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Solution
The fourth proportional to 69,979,921.70, 104,957,918.78 and 18,849,983.09 is: 28,271,752.03
Step by Step Solution
- Step 1: Write the proportion equation
69,979,921.70 : 104,957,918.78 = 18,849,983.09 : x - Step 2: Convert to fraction form
69,979,921.70/104,957,918.78 = 18,849,983.09/x - Step 3: Cross multiply
69,979,921.70x = 104,957,918.78 × 18,849,983.09 - Step 4: Simplify right side
69,979,921.70x = 1,978,454,993,545,554.25 - Step 5: Solve for x
x = 1,978,454,993,545,554.25/69,979,921.70 - Step 6: Final answer
x = 28,271,752.03
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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.